Modern humans may have inherited some Neanderthal genes

Posted 7 May 2010 by

I know virtually nothing about this subject, and I will try very hard to avoid odious comparisons between Neanderthals and anyone else, but it appears that white and Asian people, but not sub-Saharan Africans, have 1-4% Neanderthal genes in our genomes. You may read news articles about it in the New York Times free or in Science with a subscription. Science also has provided a special feature on the Neanderthal genome and has made two technical articles available without charge, but not the news article cited above. This paragraph has almost completely exhausted my knowledge of the Neanderthal genome.

131 Comments

DS · 7 May 2010

So, Neanderthals were not human beings and contamination was not an issue. Glad that's finally settled. Now the real fun can start.

Did Neanderthals have the same chromosome complement as chimpanzees, or did they have the same fusion seen in humans? Their mitochondrial DNA is intermediate between chimps and humans as is their nuclear DNA, but how many SINE insertions do they share in common with humans? Can the Neanderthal nuclear DNA found to be introgressed into modern humans be used to study human adaptation and migration? How will this compare to the mitochondrial and Y chromosome data? What regulatory changes were important in the evolution of human morphology and which occurred before the split with Neanderthals? Can mitochondrial and nuclear sequencers be obtained from even older hominid fossils and how will they compare to the Neanderthal sequence? How are the creos ever going find a way to spin this that doesn't make them look bad? They must live in constant fear of things like this being discovered.

atheistwars · 7 May 2010

This comment has been moved to The Bathroom Wall.

John Kwok · 7 May 2010

This discovery is additional confirmation of the "Out of Africa" migration hypothesis, since Africans lack traces of the Neanderthal genome (Current Africans were not part of the migration out of Africa which allowed Homo sapiens to populate Europe, Asia, and eventually, Australia and the Americas.). This discovery also confirms possible skeletal evidence of hybridizations between Homo sapiens and Homo neandertalensis in the Middle East, where their skeletons have been found, often in the same sedimentary strata.

Not surprisingly, Carl Zimmer has an especially lucid account of this discovery, made primarily by Swedish geneticist Svante Paabo and his team at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany:

http://blogs.discovermagazine.com/loom/2010/05/06/skull-caps-and-genomes/

Diogenes · 7 May 2010

So this explains the Tea Party!

Wheels · 7 May 2010

I thought that earlier mitochondrial DNA analysis ruled out the interbreeding hypothesis?

John Kwok · 7 May 2010

Not even remotely close:
Diogenes said: So this explains the Tea Party!
If you want an explanation for the Tea Party Movement, then read Brown University historian Gordon Wood's excellent histories (which, I am sure, Ken Miller would endose immediately, since he has done so already in his "Only A Theory: Evolution and the Battle for America's Soul"), or read the original material from the likes of John Adams, Benjamin Franklin, Thomas Jefferson, James Madison and their fellow Founding Fathers. If you want to discuss politics, then please do so elsewhere. Your comment isn't informative, especially as it pertains to the Science articles cited by Matt Young.

John Kwok · 7 May 2010

That's an excellent point, Wheels, but this study didn't rely on mitochondrial DNA data (which Carl Zimmer does mention in his extremely lucid, quite well written, report), but instead, by studying the entire genome:
Wheels said: I thought that earlier mitochondrial DNA analysis ruled out the interbreeding hypothesis?
I heard Svante Paabo talk about this during a special two day symposium on evolution held exactly two years ago at Rockefeller University. He said that he and his team was close to creating a complete Neanderthal genome sequence, but I didn't really grasp that he was really very, very close.

DS · 7 May 2010

Wheels said: I thought that earlier mitochondrial DNA analysis ruled out the interbreeding hypothesis?
No, It did not rule it out. It only provided evidence that there was no extensive hybridization involving female Neanderthals mating with human males. That certainly did not preclude the possibility of low levels of hybridization, especially between human females and Neanderthal males. This evidence seems to indicate that some low level of introgression of Neanderthal genes happened in Europe after modern humans started coming out of Africa and before they colonized the rest of the world. That is certainly consistent with all of the other genetic data.

John Kwok · 7 May 2010

Probably more likely in the Middle East, since some fossilized hominid remains indicate hybridization between both species. To the best of my knowledge, that's the only region where there may be paleobiological evidence of hybridization:
DS said:
Wheels said: I thought that earlier mitochondrial DNA analysis ruled out the interbreeding hypothesis?
No, It did not rule it out. It only provided evidence that there was no extensive hybridization involving female Neanderthals mating with human males. That certainly did not preclude the possibility of low levels of hybridization, especially between human females and Neanderthal males. This evidence seems to indicate that some low level of introgression of Neanderthal genes happened in Europe after modern humans started coming out of Africa and before they colonized the rest of the world. That is certainly consistent with all of the other genetic data.

John Kwok · 7 May 2010

It's the Middle East as the likely site for introgression of Neanderthal genes simply because much of Europe was probably covered by continental glaciation, and early Homo sapiens would have had to trek north and west from the Middle East to reach what is now Western Europe; from Asia, migrants would have headed due north and east.
John Kwok said: Probably more likely in the Middle East, since some fossilized hominid remains indicate hybridization between both species. To the best of my knowledge, that's the only region where there may be paleobiological evidence of hybridization:
DS said:
Wheels said: I thought that earlier mitochondrial DNA analysis ruled out the interbreeding hypothesis?
No, It did not rule it out. It only provided evidence that there was no extensive hybridization involving female Neanderthals mating with human males. That certainly did not preclude the possibility of low levels of hybridization, especially between human females and Neanderthal males. This evidence seems to indicate that some low level of introgression of Neanderthal genes happened in Europe after modern humans started coming out of Africa and before they colonized the rest of the world. That is certainly consistent with all of the other genetic data.

Gary · 8 May 2010

This is truly amazing to me, since neanderthals have 24 pairs of chromosomes and we have 23. This shows a lot more ability to breed when there are differences between genomes. Have they said anything about how this sheds light on when and how our chromosomes fused together?

djlactin · 8 May 2010

detailed discussion of the paper here: http://johnhawks.net/weblog; also see http://dienekes.blogspot.com for a skeptical perspective

Malchus · 8 May 2010

Why do you say that Neandertals had 24 pairs of chromosomes? Presumably, for a viable hybrid to prove viable, the chromosome number must be the same? 23?
Gary said: This is truly amazing to me, since neanderthals have 24 pairs of chromosomes and we have 23. This shows a lot more ability to breed when there are differences between genomes. Have they said anything about how this sheds light on when and how our chromosomes fused together?

CS Shelton · 8 May 2010

Small and outbreeding ethnic groups of homo sapiens are going extinct these days (mostly indigenous peoples). But are they truly going extinct when their DNA is still around? The idea that neanderthals didn't shuffle off without leaving a mark on us really appeals to me, in that I have an emotional need to see slivers of hope in the Holocene Extinction.

Within my species I'd like to see a similar project: Find DNA from extinct Indian tribes, isolate any unique areas of it, and compare to living people in the USA. Did they leave a mark?

Another point of curiosity as an artist with an interest in the cosmetic differences of race - Could the genes responsible for neanderthal skeletal features be discovered, then compared against modern groups that look similar? Example: Many French and Chinese people receding chins, which is a classic neanderthal feature. Did they inherit them from our extinct cousins?

Given what I've seen of the study (I'll need to read it more deeply, time permitting), it's safe to assume most white people are part neanderthal. That's fun to know about oneself, really.

This is all very unscientific and useless reflection, so apologies to anyone annoyed by it. Carry on.

hoary puccoon · 8 May 2010

Malchus and Gary--

PZ Myers has a really good post explaining how two individuals with different numbers of chromosomes can produce offspring. See his post "Basic: How Can Chromosome Numbers Change?" April 21, 2008, on Pharyngula.

The gist of it is, two individuals with different numbers of chromosomes have reduced fertility, but reduced fertility doesn't mean no fertility.

John Kwok · 8 May 2010

Well CS, while your goal of DNA comparison is laudable, I am afraid that it might meet with ample resistance from American Indian tribes, especially those who fear they could lose their protected status on reservation lands, if, for example, it could be shown that much of the surrounding population had genes from these tribes and were far more numerous than the surviving tribes:
CS Shelton said: Within my species I'd like to see a similar project: Find DNA from extinct Indian tribes, isolate any unique areas of it, and compare to living people in the USA. Did they leave a mark? Another point of curiosity as an artist with an interest in the cosmetic differences of race - Could the genes responsible for neanderthal skeletal features be discovered, then compared against modern groups that look similar? Example: Many French and Chinese people receding chins, which is a classic neanderthal feature. Did they inherit them from our extinct cousins?
The presence of receding chins amongs those of my ethnic background (I am of Chinese descent) and the French may have occurred for reasons other than traces of Neanderthal DNA, based, I suppose, on local environmental factors and long-term reproductive isolation.

notedscholar · 8 May 2010

I was reading this study last night. The problem here is that unsavory origins of Westerners is in conflict with the overwhelming evidence of good performance, health outcomes, scientific progress, etc., from the West. In fact, if we come from Neanderthals, how did we ever get where we are? An ancillary question arises: If we have these defective genes, how did we ever figure it out?

NS

TomS · 8 May 2010

Why do you think that Neanderthals were "unsavory" or "defective"? Or that the "west" is representative of modern Homo sapiens, or of what is "savory" or not "defective"?

Stanton · 8 May 2010

notedscholar said: I was reading this study last night. The problem here is that unsavory origins of Westerners is in conflict with the overwhelming evidence of good performance, health outcomes, scientific progress, etc., from the West.
The only person here saying that Westerners having an unsavory origin is a problem is you. If this is the conclusion you have come to, it appears that you have extremely poor reading comprehension skills. The gist of the report can be neatly summarized in the title of this blog post. A less concise version would be "The ancestors of modern Caucasians apparently interbred with Neanderthals prior to the Neanderthals' extinct." Nothing about racial inferiority or racism in general.
In fact, if we come from Neanderthals, how did we ever get where we are? An ancillary question arises: If we have these defective genes, how did we ever figure it out? NS
The answer is quite simple: either the genes we humans inherited from Neanderthals were not defective, or they were defective in a way that doesn't bother us at all. Either way, given as how Homo sapiens has been able to persist for thousands upon thousands of years after the extinction of H. neanderthalensis strongly suggests that your concerns that we inherited "defective genes" from them are foolish and irrelevant.

raven · 8 May 2010

Notedtroll: The problem here is that unsavory origins of Westerners is in conflict with the overwhelming evidence of good performance, health outcomes, scientific progress, etc., from the West. In fact, if we come from Neanderthals, how did we ever get where we are?
Are you trying to be stupid or what? You are assuming Neanderthals were markedly inferior to ancient H. sapiens. There is little evidence for this. Their lineage survived for 400,000 years in ice age Eurasia, while we were stuck in Africa. One could argue that they were tougher and better adapted to a very severe environment for humans than we were. We only managed to colonize that area late in our history. There is also the well known genetic phenomena of hybrid vigor. Outbreeding groups of organisms with high degrees of heterozygosity tend to be fitter than inbred groups. That is why you are not supposed to marry your sister or cousin. It is also the basis of our agricultural systems. Hybrid corn is one of the most important crops in the USA and the world. Besides which, the hybridization was 40,000 years ago. Time enough for significant evolution after the fact, which we've seen in humans. You are not a noted scholar, but rather a garden variety troll.

John Kwok · 8 May 2010

Not just Caucasians, Stanton. Your quote should be, "The ancestors of modern non-African Homo sapiens apparently interbred with Neanderthals tens of thousands of years prior to the Neanderthals's extinction":
Stanton said:
notedscholar said: I was reading this study last night. The problem here is that unsavory origins of Westerners is in conflict with the overwhelming evidence of good performance, health outcomes, scientific progress, etc., from the West.
The only person here saying that Westerners having an unsavory origin is a problem is you. If this is the conclusion you have come to, it appears that you have extremely poor reading comprehension skills. The gist of the report can be neatly summarized in the title of this blog post. A less concise version would be "The ancestors of modern Caucasians apparently interbred with Neanderthals prior to the Neanderthals' extinct." Nothing about racial inferiority or racism in general.
In fact, if we come from Neanderthals, how did we ever get where we are? An ancillary question arises: If we have these defective genes, how did we ever figure it out? NS
The answer is quite simple: either the genes we humans inherited from Neanderthals were not defective, or they were defective in a way that doesn't bother us at all. Either way, given as how Homo sapiens has been able to persist for thousands upon thousands of years after the extinction of H. neanderthalensis strongly suggests that your concerns that we inherited "defective genes" from them are foolish and irrelevant.

John Kwok · 8 May 2010

You are sadly quite delusional here, noted ignoramous:
notedscholar said: I was reading this study last night. The problem here is that unsavory origins of Westerners is in conflict with the overwhelming evidence of good performance, health outcomes, scientific progress, etc., from the West. In fact, if we come from Neanderthals, how did we ever get where we are? An ancillary question arises: If we have these defective genes, how did we ever figure it out? NS
You are conflating cultural traits of Westerners with biological ones. And, moreover, if Neanderthals were truly inferior, then why did they not only persist, but also thrived, during the worst instances of continental glaciation in Europe, and apparently, continued to survive for tens of thousands of years after encountering migrating modern Homo sapiens from Africa? No need to belabor the point, but I concur completely with TomS's, and especially, Stanton and raven's comments.

raven · 8 May 2010

wikipedia Neanderthals: Neanderthal cranial capacity is thought to have been as large as that of Homo sapiens, perhaps larger, indicating that their brain size may have been comparable as well. In 2008, a group of scientists made a study using three-dimensional computer-assisted reconstructions of Neanderthal infants based on fossils found in Russia and Syria, showing that they had brains as large as ours at birth and larger than ours as adults.[10]
I'll add here that Neanderthals had larger brains than us. Intelligence isn't highly correlated with brains size but the correlation isn't zero either.

Matt Young · 8 May 2010

So this explains the Tea Party!
Oh, come on. I tried soooo hard to avoid saying something like that!

harold · 8 May 2010

notedscholar - Your comment is a remarkable example of bias leading to miscomprehension.
I was reading this study last night. The problem here is that unsavory origins of Westerners
"Westerners" is a modern term describing cultural traits. The article does not deal with the "origins" of any group of people. It notes some small amount of overlap of genes between European and Asian populations, with the recently sequenced Neanderthal genome. "Unsavory" is a subjective term which you have no rational basis for using here. You seem to be projecting present day biases of your own onto a poorly understood species of humans who went extinct (albeit while seemingly passing on some amount of genetic material to modern humans) 28,000 years ago.
is in conflict with the overwhelming evidence of good performance, health outcomes, scientific progress, etc., from the West.
No-one said anything at all about any of this. I will note that the only comment so far that may reflect a lack of respect for scientific progress is yours.
In fact, if we come from Neanderthals, how did we ever get where we are?
The article cannot be interpreted by a competent reader as suggesting that we "come from" Neanderthals. (The use of the unscientific terminology "come from" is associated with some of the worst creationist arguments, even if you are not implying acceptance of those arguments). You seem to be taking some kind of modern biases, and using them to make bizarre negative judgments about an extinct species of human. We don't know what type of descendants might have hypothetically evolved from Neanderthals in alternate circumstances.
An ancillary question arises: If we have these defective genes,
There is no scientific rationale for labeling Neanderthal genes "defective". Note that how many genes we "share" with Neanderthals depends entirely on how we define the identity of genes. It is very accurate to state that we share many genes with brewer's yeast. In this thread about modern humans and Neanderthals, gene identity is being defined, not by broad functional and sequence homology (and related traits), but by sufficiently tight homology to imply fairly recent common ancestry. From the point of view of functional homology, we share the all but a tiny fraction of our genes with Neanderthals and chimpanzees.

stevaroni · 8 May 2010

Malchus said: Why do you say that Neandertals had 24 pairs of chromosomes? Presumably, for a viable hybrid to prove viable, the chromosome number must be the same? 23?
The basic genetics must be similar, but individual chromosomes can, and do, split and fuse sometimes so that closely related species can still have the same basig genome sliced up into different numbers of chromosomes. In such a case these animals can sometimes interbreed despite the different number of chromosomes, as evinced by hybrids such as the mule, an animal with (typically) 63 chromosomes, the offspring of a donkey (64 chromosomes) and a horse (62). On the other hand, though sometimes these hybrids are very successful (mules, in general, are more robustly healthy and intelligent than either horses or donkeys), the ad-hoc nature of their genetics usually renders them infertile.

stevaroni · 8 May 2010

harold said:
notedscholar - An ancillary question arises: If we have these defective genes,
There is no scientific rationale for labeling Neanderthal genes "defective".
Indeed. It should be noted that Neanderthals have a much longer track record than modern humans. They ruled as the dominant species in northern Europe for 400,000 years while many variations of our more direct ancestors proved too delicate to endure.

Henry J · 8 May 2010

Wasn't this documented in Clan of the Cave Bear with Daryl Hannah?

Peter Henderson · 8 May 2010

First reactions from AiG:

The news doesn’t surprise young-earth creationists, who predicted overlap between modern human and Neanderthal genomes. Based on Scripture, creationists consider Neanderthals to have been fully human, descendants of Adam and Eve (through Noah), and therefore they would have lived in the same time and place as other humans. But factors related to both the dispersion at Babel and environmental pressures afterward resulted in people groups with different physical characteristics, including humans with “Neanderthal” characteristics. Liberty University cell biologist (and creationist) David DeWitt called the research an “amazing feat” of science that supports creationist expectations. “Finding Neanderthal DNA in humans was not expected by evolutionists, but it was predicted from a creation standpoint because we have said all along that Neanderthals were fully human: descendants of Adam and Eve, just like us,” he told News to Note. DeWitt also pointed to research on mitochondrial DNA several years earlier that had boldly claimed that Neanderthals were not our ancestors, based on the genetic results at that time. “We really have to be careful with scientific conclusions and data,” DeWitt explained. “Now, with a more thorough analysis, we have the exact opposite conclusions.” While Neanderthals remain something of a mystery even to creationists, the new research reminds us of the reality of what the Bible teaches: Neanderthals were neither ape-men nor inferior to other humans. Rather, as with all humans, Neanderthals were part of the one blood of humankind (Acts 17:26), and therefore carried the image of God (Genesis 1:27). * As to why the percentage of Neanderthal DNA found in modern humans is relatively small, we note the following. Neanderthal fossils are from individuals who have been dead for hundreds to thousands of years. Since that time, there have been selection pressure, genetic drift, and population bottlenecks (such as the bubonic plague that struck Europe, episodes of “ethnic cleansing,” etc.). These all have impacts on the gene pool, as does relative population size. Humans alive today have come through that, while the Neanderthals did not.

So there you have it. Something YECs appaarently knew all along.

Peter Henderson · 8 May 2010

Here's the link by the way:

http://www.answersingenesis.org/articles/2010/05/08/news-to-note-05082010

djlactin · 8 May 2010

Me Neanderthal. Me have protruding nose; occipital bun, hair around chin and throat... well okay, that's all. But as a Caucasian living in Asia (and a reader of a lot of stuff), I have made a few observations. Caucasians are anomalous. All humans (except "us") have brown skin, wide noses, black hair (except a few blond aborigines), brown irises and hairless skin; weak or absent facial hair. Consider (particularly) European Caucasians: pale skin; narrow, protruding noses; hair color from ash blond to black with excursions into red; irises ranging from gray through blue to violet and a large range of 'browns' from pale to deep; many (myself excluded) with thick body hair.
Consider a migrant from Africa: as "black" as any modern African. Consider the disadvantages of this type in an environment with weak sunlight and cold air.
Pale skin (associated with pale irises?): an advantage in the sunlight-poor northern latitudes (vitamin D; folate); protruding noses: efficient heat and moisture exchangers; body hair: glaciation. Consider that Neanderthals had evolved for more than half a million years in this environment. Genes from such a pool would have abetted the invasion of the newbies.
Me Neanderthal. Me name Thag.

raven · 8 May 2010

Why do you say that Neandertals had 24 pairs of chromosomes? Presumably, for a viable hybrid to prove viable, the chromosome number must be the same? 23?
I've never heard that Neanderthals had 24 pairs of chromosomes before except in a science fiction book by R. Sawyer. Which doesn't make it a fact by any means. Chromosome karyotypes can vary within a species without much in the way of an effect on reproductive fitness. The horse has a variable karyotype and so do mice and Okapis.
wikipedia wild horses: Genetically, the pre-domestication horse, Equus ferus ferus, and domesticated horse, Equus ferus caballus, form a single homogeneous group (clade) and are genetically indistinguishable from each other.[4][11][12] [13] The genetic variation within this clade shows only a limited regional variation, with a notable exception of the Przewalski's Horse.[4][11][12][13] The Przewalski's Horse has several unique genetic differences that distinguishes it from the other subspecies, including 66 instead of 64 chromosomes,[2] [14] unique Y-chromosome gene haplotypes, [15] and unique mtDNA haplotypes. [16
Note. Not all domestic horses have the same karyotype, a few breeds being similar to the wild horses. Pzewalski's horse and domestic horses readily interbreed with fertile offspring. The sterility between horses and donkeys is thougt to have nothing to do with karyotype differences. These equids diverged long ago and really aren't all that closely related. It seems to have more to do with lower overall genomic homology.
Genet Res. 2005 Dec;86(3):171-83. Epub 2005 Nov 23. Links Chromosomal phylogeny of Robertsonian races of the house mouse on the island of Madeira: testing between alternative mutational processes.Britton-Davidian J, Catalan J, da Graça Ramalhinho M, Auffray JC, Claudia Nunes A, Gazave E, Searle JB, da Luz Mathias M. Institut des Sciences de l'Evolution, UMR 5554, Laboratoire Génétique et Environnement, CC65, Université Montpellier II, France. The ancestral karyotype of the house mouse (Mus musculus) consists of 40 acrocentric chromosomes, but numerous races exist within the domesticus subspecies characterized by different metacentric chromosomes formed by the joining at the centromere of two acrocentrics. An exemplary case is present on the island of Madeira where six highly divergent chromosomal races have accumulated different combinations of 20 metacentrics in 500-1000 years. Chromosomal cladistic phylogenies were performed to test the relative performance of Robertsonian (Rb) fusions, Rb fissions and whole-arm reciprocal translocations (WARTs) in resolving relationships between the chromosomal races. The different trees yielded roughly similar topologies, but varied in the number of steps and branch support. The analyses using Rb fusions/fissions as characters resulted in poorly supported trees requiring six to eight homoplasious events. Allowance for WARTs considerably increased nodal support and yielded the most parsimonious trees since homoplasy was reduced to a single event. The WART-based trees required five to nine WARTs and 12 to 16 Rb fusions. These analyses provide support for the role of WARTs in generating the extensive chromosomal diversification observed in house mice. The repeated occurrence of Rb fusions and WARTs highlights the contribution of centromere-related rearrangements to accelerated rates of chromosomal change in the house mouse.

Mike Elzinga · 8 May 2010

Peter Henderson said: Here's the link by the way: http://www.answersingenesis.org/articles/2010/05/08/news-to-note-05082010
:-) Typical creationist post hoc rationalization.

harold · 8 May 2010

djlactin -
But as a Caucasian living in Asia (and a reader of a lot of stuff), I have made a few observations.
As a pasty pale person of very European appearance (although actually being part Amerindian), I wish that the word "Caucasian" would not be used as a synonym for "white" or "European" appearance. It comes from the nineteenth century idea that Indo-European languages may have originated in the Caucasian mountain region (which may or may not be true) and from the over-simplified and incorrect conflation of Indo-European-speaking groups with "European" genetics. But anyway, the word is common...
Caucasians are anomalous. All humans (except “us”) have brown skin, wide noses, black hair (except a few blond aborigines), brown irises and hairless skin; weak or absent facial hair. Consider (particularly) European Caucasians: pale skin; narrow, protruding noses; hair color from ash blond to black with excursions into red; irises ranging from gray through blue to violet and a large range of ‘browns’ from pale to deep; many (myself excluded) with thick body hair.
However, we must remember that it is a social convention to describe anyone with the traits you describe as "white" or "Caucasian". At least some groups who are not directly from Europe have some of these traits as well. http://en.wikipedia.org/wiki/Ainu_people#Origins
Consider a migrant from Africa: as “black” as any modern African. Consider the disadvantages of this type in an environment with weak sunlight and cold air. Pale skin (associated with pale irises?): an advantage in the sunlight-poor northern latitudes (vitamin D; folate);
It is correct that in very northern environments with very low sunlight, children with very dark skin can be at risk for rickets. It is probably a reasonable idea that low skin melanin content was selected for in some way as humans reached colder and darker environments. This could have happened due to paler skinned people gradually gravitating toward more northerly environments. As far as I know, we also can't rule out the possibility that early humans had pale skin and that darker skin is actually a later adaptation to hotter climates. Furthermore, plenty of dark-skinned people do well in extremely cold climates; in fact the natives of the world's coldest climates are dark-skinned http://en.wikipedia.org/wiki/Yaghan, http://en.wikipedia.org/wiki/Inuit Why humans "lost" their body hair remains, as far as I know, a complete mystery. Ironically, lack of body hair creates a requirement for clothing, and clothing makes exploitation of much colder climates possible for an originally tropical animal. Although the Yaghan did not require significant clothing to exploit a very cold environment, due to other adaptations.
protruding noses: efficient heat and moisture exchangers;
Evidence?
body hair: glaciation.
A highly dubious suggestion. No group of humans has sufficient body hair to allow survival in a cold climate on the basis of hair as an insulator. Body hair amount in male humans is not distributed according strictly according to climate; some people historically from warm regions have a lot of hair and some historically from cold regions do not. The Yaghan tolerated cold without clothing to speak of but did not have a lot of body hair.
Consider that Neanderthals had evolved for more than half a million years in this environment. Genes from such a pool would have abetted the invasion of the newbies.
A reasonable thought, but for now it has not been suggested by the evidence that cold adaption traits in modern humans are related to Neanderthal ancestry. However, this idea could represent a hypothesis worthy of being considered.

SWT · 8 May 2010

Peter Henderson said: First reactions from AiG:

* As to why the percentage of Neanderthal DNA found in modern humans is relatively small, we note the following. Neanderthal fossils are from individuals who have been dead for hundreds to thousands of years.

Am I the only one who laughed out loud at the part I bolded above? It seems to me that if there were Neanderthals around a few hundred years ago, we'd have some historical record of them ... especially if there was some interbreeding. Well, at least these intrepid creationists put in the time and effort to sequence the Neanderthal genome and compare to the the modern human genome to test their theory about how closely related they would be genetically ... oh, wait ...

Dornier Pfeil · 8 May 2010

DS said: So, Neanderthals were not human beings and contamination was not an issue. Glad that's finally settled. Now the real fun can start.
The creotards have simply defined "kinds" as corresponding to the level of the genus. http://www.creationtips.com/neanderthal.html Never mind that the biblical authors could never have known anything about a classification scheme, as abused by the creotards, invented thousands of years after they composed the bible.
DS said: Did Neanderthals have the same chromosome complement as chimpanzees, or did they have the same fusion seen in humans?
Didn't that fusion event happen millions of years ago rather than thousands?
John Kwok said: Not even remotely close:
Diogenes said: So this explains the Tea Party!
If you want an explanation for the Tea Party Movement, then read Brown University historian Gordon Wood's excellent histories (which, I am sure, Ken Miller would endose immediately, since he has done so already in his "Only A Theory: Evolution and the Battle for America's Soul"), or read the original material from the likes of John Adams, Benjamin Franklin, Thomas Jefferson, James Madison and their fellow Founding Fathers.
What Diogenes said was funny and not the least bit was it necessarily political. Your interjection was a naked attempt to make it so. You are a perfect example of why Lib's have no sense of humor.
John Kwok said: If you want to discuss politics, then please do so elsewhere. Your comment isn't informative, especially as it pertains to the Science articles cited by Matt Young.
Who appointed you thread police. I am quit certain Matt Young can take care of his own territory or do you think he is as weak as creotards regard their own god. Go conduct your boot polish tastings elsewhere.

Dornier Pfeil · 8 May 2010

SWT said:
Peter Henderson said: First reactions from AiG:

* As to why the percentage of Neanderthal DNA found in modern humans is relatively small, we note the following. Neanderthal fossils are from individuals who have been dead for hundreds to thousands of years.

Am I the only one who laughed out loud at the part I bolded above? It seems to me that if there were Neanderthals around a few hundred years ago, we'd have some historical record of them ... especially if there was some interbreeding.
Surely you haven't forgotten the Nephilim? :p

Matt Young · 8 May 2010

It seems to me that if there were Neanderthals around a few hundred years ago, we’d have some historical record of them … especially if there was some interbreeding.

Michael Crichton suggested, in a novel called Eaters of the Dead, that the Rus battled the last remaining Neanderthals in the early tenth century, C.E. I have no idea whether anyone took his suggestion seriously.

Vaughn · 8 May 2010

Gary said: This is truly amazing to me, since neanderthals have 24 pairs of chromosomes and we have 23. This shows a lot more ability to breed when there are differences between genomes. Have they said anything about how this sheds light on when and how our chromosomes fused together?
Based on what I know about karyotyping, determining the chromosome number in an extinct group like the neanderthals would be impossible. Do you have a reference for this claim? Vaughn

raven · 8 May 2010

AIG: Neanderthal fossils are from individuals who have been dead for hundreds to thousands of years.
It is like they aren't even trying anymore. Did Neanderthals die out before or after the flood? Were they at the Tower of Babel? Was Abraham a Neanderthal or any of the other biblical figures? Could the Philistine Goliath, reputed to be a large, sturdy warrior, be a Neanderthal? One of the pathetic oddities of AIG creationism, is that with a 6,000 year old earth, there never was a stone age. Cain and Abel, the second humans, were farmers and ranchers. Which of course doesn't explain why the earth's surface is covered everywhere with stone tools and stone age archaeological sites. I feel sorry for the children stuck in creationist lunacy. Science discovers new and wonderful things about the huge, old universe every day. The creationists ignore most of it and make up feeble lies about the rest. And this is never going to end unless they gain control of our society, kill the scientists, and burn the libraries.

Paul Burnett · 8 May 2010

raven said: ...this is never going to end unless (creationists) gain control of our society, kill the scientists, and burn the libraries.
That's their ultimate goal - the Theocratic States of America. Look up Christian Reconstructionism, or see http://en.wikipedia.org/wiki/Dominionism. This was even a staple of science fiction a few decades ago. Some of Robert Heinlein's and Andre Norton's dystopian novels had that as a subject.

Andrew Stallard · 8 May 2010

TomS said: Why do you think that Neanderthals were "unsavory" or "defective"? Or that the "west" is representative of modern Homo sapiens, or of what is "savory" or not "defective"?
The notecscholar has mis-read the paper. He confused the part about single nucleotide polymorphisms thought to confer selective advantage in modern humans that are, predictably fixed in modern humans but not so in the Neanderthals, with the analysis of what genes humans and Neanderthals have in common and what human populations are more likely to have them.

Andrew Stallard · 8 May 2010

One thing I noticed is that the point of comparison are the human accelerator genes not found in chimps are used in order to establish how related humans and Neanderthals are. By using chimps as a baseline, isn't that enough to declare the study bogus in the eyes of Creationists, since they can say it relies on a question-begging evolutionary assumption of human-chimp relatedness?

djlactin · 8 May 2010

Hey Harold: you take me too seriously. I use the term "caucasian" only because it is in common use (and less offensive/more accurate than "white"). My point was that European caucasians (excluding caucasians currently living in India, who have been selected for darker skin -- carcinomas and such) are starkly different from, shall I say, "typical" humans. The characteristics that I listed MAY result from Neanderthal introgression. Sincerely, Thag Simmons.

Peter Henderson · 8 May 2010

Did Neanderthals die out before or after the flood? Were they at the Tower of Babel? Was Abraham a Neanderthal or any of the other biblical figures?

Did neanderthals have lifespans of 900 + years ?

Shebardigan · 8 May 2010

My last intensive read-up of our understanding of Neandertals told me that they were obligate carnivores.

If this be true, then, in combination with the fact that they were perhaps the most horrifyingly efficient predator in their size range for a very long time, it gives us a fairly good set of possible reasons why we replaced them.

They would have had to live in small, geographically dispersed groups. This is nearly always characteristic of efficient carnivores. Our ancestors, being a bit less locked in to a single mode of acquiring nutrition, had no such limitations. If the Neandertals, even being considerably larger than we, were only encountered in groups of a dozen or so, but we could show up with a couple hundred or more, marginalization of Neandertals, followed by extinction, would have been inevitable.

I have often wondered whether the legends of "giants" in some social traditions represent a memory of encounters with Neandertals -- large, strong, solitary, cannibalistic, lacking in speech facility, likely to steal your cattle...

raven · 8 May 2010

My last intensive read-up of our understanding of Neandertals told me that they were obligate carnivores.
I doubt they were any more obligatory carnivores than the Eskimos. Depends on where you live more than what your physiology can handle. Someone once pointed out that Eskimos, despite having a high animal fat diet, didn't die of artherosclerosis at high rates. And someone else pointed out that this was because they all died in their 40s from kidney failure due to a high protein diet. These days none of this is likely happening due to acculturation.

Frank J · 8 May 2010

It is like they aren’t even trying anymore. Did Neanderthals die out before or after the flood? Were they at the Tower of Babel? Was Abraham a Neanderthal or any of the other biblical figures?

— raven
Why not ask the DI? Oh, wait, they think that Neanderthals have been extinct for ~5 times longer than AiG thinks any life has existed. Oh, well, here's another opportunity for the DI to back up its "ID is not creationism" chant.

Bobsie · 8 May 2010

FYI, some recent research findings,
Ancient DNA Reveals Surprisingly Few Differences In Human and Neanderthals,5/6/2010, HHMI News
http://www.hhmi.org/news/hannon20100506.html

Shebardigan · 8 May 2010

raven said: I doubt they were any more obligatory carnivores than the Eskimos. Depends on where you live more than what your physiology can handle. Someone once pointed out that Eskimos, despite having a high animal fat diet, didn't die of artherosclerosis at high rates. And someone else pointed out that this was because they all died in their 40s from kidney failure due to a high protein diet. These days none of this is likely happening due to acculturation.
Inuit and other northern peoples live where the amount of plant nutrition available is starkly limited. Organisms that live in a vegetation-rich environment but still display isotope ratios indicative of obligate carnivory tend strongly to be obligate carnivores. Although the Aleutian chain is a bit more balmy than the northern coasts of Alaska, Aleut diet was still rather protein-biased until recently. Archaeological data indicate that, on many islands, the average age at death was in the mid 60s, at least until the European incursion. (And the average work week was about 16 hours.)

John Kwok · 8 May 2010

Who said I'm a liberal? Apparently you haven't heard of my "affection" for a certain American president and two of his closest aides, who, unfortunately, are fellow alumni of our high school.

Anyway I was concerned that this thread might digress into more political baiting that's occurred elsewhere here at PT, and thought that given the historic importance of this report on the "rough draft" of the Neanderthal genome, didn't want to see any similar incidents here.

David Fickett-Wilbar · 8 May 2010

djlactin said: Me Neanderthal. Me have protruding nose; occipital bun, hair around chin and throat... well okay, that's all. But as a Caucasian living in Asia (and a reader of a lot of stuff), I have made a few observations.
Am I the only one to note that apparently Neanderthal guys got it on with modern women, but not the other way round? What, Cro Mag chicks dig those eyebrow ridges, but those ridges don't do a thing for the guys?

John Kwok · 8 May 2010

That's fascinating, but not entirely surprising, given that humans and bonobos (and other chimps) have nearly identical genomes. Of course what is most interesting is accounting how the slight differences in Neanderthal and Human DNA yielded such substantial differences in comparative anatomy and maybe, perhaps, cognition:
Bobsie said: FYI, some recent research findings, Ancient DNA Reveals Surprisingly Few Differences In Human and Neanderthals,5/6/2010, HHMI News http://www.hhmi.org/news/hannon20100506.html

Shebardigan · 8 May 2010

David Fickett-Wilbar said: Am I the only one to note that apparently Neanderthal guys got it on with modern women, but not the other way round? What, Cro Mag chicks dig those eyebrow ridges, but those ridges don't do a thing for the guys?
Depends upon how much importance you might place on one person being 0.5 to 1.0 meters taller and 100 kg more massive than the other, as far as amorous relationships (voluntary or involuntary) are concerned.

Bobsie · 8 May 2010

John Kwok said:Who said I'm a liberal?
Ah, I think lib meant libertarian not liberal. Check the cartoon link.

W. H. Heydt · 8 May 2010

Paul Burnett said:
raven said: ...this is never going to end unless (creationists) gain control of our society, kill the scientists, and burn the libraries.
That's their ultimate goal - the Theocratic States of America. Look up Christian Reconstructionism, or see http://en.wikipedia.org/wiki/Dominionism. This was even a staple of science fiction a few decades ago. Some of Robert Heinlein's and Andre Norton's dystopian novels had that as a subject.
In Heinlein's _Future History_ universe, the fundie takeover came with the election of Nehemiah Scuder in...2012.

harold · 8 May 2010

Raven -
And someone else pointed out that this was because they all died in their 40s from kidney failure due to a high protein diet.
This was already partly covered, but...there is no evidence that high protein diets cause kidney failure. This misconception arises because people who already have kidney failure (almost always for reasons not related to eating a lot of protein) may benefit from reducing dietary nitrogen. There are also claims out there that high protein diets are related to kidney stones (which are to be avoided but usually don't cause renal failure), but that is also not supported by any real evidence. Other ravings, since this triggers some of my interests... The life expectancy of hunter gatherer cultures is hard to evaluate meaningfully, as such cultures often have high rates of violent death (but deceptively low absolute rates of violence due to low population numbers), other risks that result from practices such as hunting wild animals with stone/wood/bone tools, lack medical treatment for serious infections (although they are much less prone to epidemics than more crowded populations they do have contact with pathogens), etc. It is true that many hunter gatherers die rather young, and also true that hunter gatherers seem to compare very favorably in health and fitness to other humans of the same age, and also true that they seem to have high mortality for a given age relative to people in rich countries. One explanation would be healthier, fitter people, but experiencing a far higher risk environment. Better to be an obese smoker with diabetes, but able to call 911, than the equivalent of a super-fit eater of nutrient dense organic foods, who just got slashed by a wild boar in a remote location, perhaps. It is commonly believed that many hunter gatherer societies would be superior in almost any morbidity or mortality statistic, if such were available, to many pre-industrial agricultural societies, wild boar slashes and whatnot notwithstanding. However, this isn't definitive, as far as I am concerned. The role of natural animal fat in human disease is actually controversial. Smoking cigarettes, sedentary lifestyle, diabetes (one form of which is associated with excess body fat) and consumption of chemically hydrogenated "trans" fats are unequivocal risk factors for the atherosclerosis-related cardiovascular diseases such as myocardial infarction, stroke, extremity ischemia, etc. How much risk eating a lot of natural animal fat adds is a complex question. No-one would suggest that eating a lot of red meat fat, egg yolks, and butter is unequivocally a good idea - especially since modern agriculture may create less healthy animal fats than traditional methods - but the incremental role of animal fat in modern diseases is not entirely clear.

harold · 8 May 2010

djlactin -

The article clearly says that modern European and Asian populations both show overlap with the Neanderthal genome. As I mentioned, people with physical traits that we would class as "Asian" live successfully in all climates (actually, so do all types of people).

I'm not trying to give you a hard time; I thought your comment was kind of interesting.

stevaroni · 8 May 2010

David Fickett-Wilbar said: Am I the only one to note that apparently Neanderthal guys got it on with modern women, but not the other way round? What, Cro Mag chicks dig those eyebrow ridges, but those ridges don't do a thing for the guys?
Actually, considering some of the places modern males are known to put their genitalia, I have always laughed at the argument that any of our ancestors would have long hesitated to tag whatever human(ish) tail presented itself on those sweet, romantic neolithic lights. Particularly the non-alpha males who traditionally are, how shall I put this, less choosy. I also suspect that this happened whether the tag-ee wanted tagging or thought very much of the tag-er.

David Fickett-Wilbar · 8 May 2010

Shebardigan said:
David Fickett-Wilbar said: Am I the only one to note that apparently Neanderthal guys got it on with modern women, but not the other way round? What, Cro Mag chicks dig those eyebrow ridges, but those ridges don't do a thing for the guys?
Depends upon how much importance you might place on one person being 0.5 to 1.0 meters taller and 100 kg more massive than the other, as far as amorous relationships (voluntary or involuntary) are concerned.
Hey, I had a roommate who was 6' 3", whose fiancee was 4; 8", so you never know.

Dave Luckett · 8 May 2010

harold says, in part: ...people with physical traits that we would class as “Asian” live successfully in all climates (actually, so do all types of people).
All humans can now live comfortably in practically any environment Earth affords, with the exception, perhaps, of the calderas of volcanoes and the like, but this has been accomplished by technology, not natural adaptation. It does not mean that all humans are adapted to live in all climates. I cannot prove this, and I have seen no research on the question, but I would imagine that Inuit people would be intensely uncomfortable in, say, Arabia, unless refrigeration were available. I would imagine that people from the Congo would find life in Lapland difficult to cope with unless vitamin D supplements and thermal underwear plus central heating were available. And even given these technologies, they would still be to some extent restricted in their ability to manage the environment. This restriction constitutes a natural selection pressure in itself. For example, someone who finds it difficult and uncomfortable to leave the house would meet fewer potential partners. In other words, given generational time, natural selection would produce people who were more comfortable and had less difficulty in coping. In other words, they would become adapted to the environment they lived in. I look forward to scientific understanding of how H. neanderthalis, plainly very well adapted to subarctic conditions in Europe, was replaced across the entire range of the species by H. sapiens, despite the fact that this must have happened during the last (Wurm, umlaut on the "u") ice age. Since H. sapiens was not so well naturally adapted to the conditions, the cause has to be found in technology or social institutions. (Technological determinists would say that the former determines the latter, of course.)

TomS · 9 May 2010

Dave Luckett said: All humans can now live comfortably in practically any environment Earth affords, with the exception, perhaps, of the calderas of volcanoes and the like, but this has been accomplished by technology, not natural adaptation. It does not mean that all humans are adapted to live in all climates. I cannot prove this, and I have seen no research on the question, but I would imagine that Inuit people would be intensely uncomfortable in, say, Arabia, unless refrigeration were available. I would imagine that people from the Congo would find life in Lapland difficult to cope with unless vitamin D supplements and thermal underwear plus central heating were available. And even given these technologies, they would still be to some extent restricted in their ability to manage the environment.
What about people who live at extremely high altitudes, in the Andes and Himalayas? Are they genetically adapted to these altitudes?

Frank J · 9 May 2010

By using chimps as a baseline, isn’t that enough to declare the study bogus in the eyes of Creationists, since they can say it relies on a question-begging evolutionary assumption of human-chimp relatedness?

— Andrew Stallard
I'm sure they (YECs and OECs) would think so. But like the YEC objection to "rocks date the fossils, fossils date the rocks," they conveniently the ignore independent evidence that allows the shortcut "assumptions." In this particular case it's even worse for them because they also have to ignore that some of their own, specifically some prominent anti-evolution activists (aka "creationists") of the ID variety, have conceded common descent. But they're good at ignoring that too when they rave about those activists, while whining about "Darwinists" who conclude practically the same biological history.

TomS · 9 May 2010

Andrew Stallard said: By using chimps as a baseline, isn't that enough to declare the study bogus in the eyes of Creationists, since they can say it relies on a question-begging evolutionary assumption of human-chimp relatedness?
If this were intended as a demonstration of human-chimp relatedness. If this were the only evidence for human-chimp relatedness. Human-chimp relatedness has been established by a vast amount of evidence, so that studies now are only (1) determining details of the relationship or (2) checking whether new evidence remains consistent with the relationship. Actually, human-chimp relationship is so well established that (2) is really a check on the new evidence, rather than a check on the relationship - in this case, as setting a baseline for understanding the modern-neanderthal relationship. The most that one can say is that if there were something amiss with our understanding of human-chimp relationship, it would show up by producing anomalous results in a study like this. Rather like surveying depends upon the earth being round, but when surveying is done, it is not for the purposes of "proving" that the earth is round, but for finding out something else. If the earth were not round, then surveying would turn up anomalous results. The fact that surveying doesn't turn up anomalous results is confirmation that the earth is round, as if confirmation were needed. One might say that the comparison between modern and neanderthal is a matter of "complex specified information", something which is extremely improbable to happen by "random chance", and which therefore must be due either to (a) natural regularity (such as common descent) or else (b) was deliberately, purposefully, intelligently "designed" to be that way. The comparison between two genomes is more "complex" than the structure of a single genome, and much of the comparison has been predicted in advance (would it ever be a surprise to find major differences!), and was thus really "specified in advance" more so than anything that the "analogy of design" has been.

harold · 9 May 2010

Dave Luckett - You seem to have read misread my comments. I did not argue that no group of humans was adapted to a particular climate. In fact, I made reference to groups, including the Inuit, who are obviously adapted to particular climates. One point I did make was that you don't have to be "Caucasian" to adapt to a cold climate. Neanderthals were adapted to cold climate, as were many paleolithic Homo Sapiens; whether we improved our climate adaptation by interbreeding with Neanderthals is a matter of pure conjecture. Neanderthals themselves were descended from tropical hominids, like all human beings.
I cannot prove this, and I have seen no research on the question, but I would imagine that Inuit people would be intensely uncomfortable in, say, Arabia, unless refrigeration were available.
This is well known to be the case.
I would imagine that people from the Congo would find life in Lapland difficult to cope with unless vitamin D supplements and thermal underwear plus central heating were available. And even given these technologies, they would still be to some extent restricted in their ability to manage the environment.
This is partly true as well, but to a lesser extent. In fact, the Inuit and Sami themselves require "thermal" clothing and dietary vitamin D to live in their environments. It is clear that people of recent tropical African descent have lived in cold climates without massive problems, even in pre-industrial times. In general, except for extremely cold or high altitude regions, the main non-cultural geographic barrier for humans in the past was infectious disease, especially, from the European perspective, in equatorial Africa. When infectious disease is taken out of the picture, it is surprisingly easy for Norwegians to live in Madagascar, and vice versa. This is true despite the fact that some people are especially adapted to certain climates. In fact, there are at least three factors that determine how humans do in a given climate - 1) Culture/technology, which can overcome many challenges. 2) Acclimatization - people get used to the environment they find themselves in. 3) Adaptation in the sense of genetic specialization. However, in many instances, the former two factors outweigh this one.

Sylvilagus · 9 May 2010

TomS said:
Dave Luckett said: All humans can now live comfortably in practically any environment Earth affords, with the exception, perhaps, of the calderas of volcanoes and the like, but this has been accomplished by technology, not natural adaptation. It does not mean that all humans are adapted to live in all climates. I cannot prove this, and I have seen no research on the question, but I would imagine that Inuit people would be intensely uncomfortable in, say, Arabia, unless refrigeration were available. I would imagine that people from the Congo would find life in Lapland difficult to cope with unless vitamin D supplements and thermal underwear plus central heating were available. And even given these technologies, they would still be to some extent restricted in their ability to manage the environment.
What about people who live at extremely high altitudes, in the Andes and Himalayas? Are they genetically adapted to these altitudes?
The indigenous peoples of the Andes tend to be shorter, squatter, with more "barrel-shaped" chests (larger lung capacity) and higher levels of hemoglobin, as I understand it, but there is evidence that much of this is environmentally induced change in phenotype during development rather than a genetic adaptation. Its been a while since I've looked at the research though.

Andrew Stallard · 9 May 2010

TomS said:
Andrew Stallard said: By using chimps as a baseline, isn't that enough to declare the study bogus in the eyes of Creationists, since they can say it relies on a question-begging evolutionary assumption of human-chimp relatedness?
If this were intended as a demonstration of human-chimp relatedness. If this were the only evidence for human-chimp relatedness. Human-chimp relatedness has been established by a vast amount of evidence, so that studies now are only (1) determining details of the relationship or (2) checking whether new evidence remains consistent with the relationship. Actually, human-chimp relationship is so well established that (2) is really a check on the new evidence, rather than a check on the relationship - in this case, as setting a baseline for understanding the modern-neanderthal relationship. The most that one can say is that if there were something amiss with our understanding of human-chimp relationship, it would show up by producing anomalous results in a study like this. Rather like surveying depends upon the earth being round, but when surveying is done, it is not for the purposes of "proving" that the earth is round, but for finding out something else. If the earth were not round, then surveying would turn up anomalous results. The fact that surveying doesn't turn up anomalous results is confirmation that the earth is round, as if confirmation were needed. One might say that the comparison between modern and neanderthal is a matter of "complex specified information", something which is extremely improbable to happen by "random chance", and which therefore must be due either to (a) natural regularity (such as common descent) or else (b) was deliberately, purposefully, intelligently "designed" to be that way. The comparison between two genomes is more "complex" than the structure of a single genome, and much of the comparison has been predicted in advance (would it ever be a surprise to find major differences!), and was thus really "specified in advance" more so than anything that the "analogy of design" has been.
Yes, I am aware of all of this, but, as a former creationist myself it appears their "methodology" has changed. They don't even challenge other people's conclusions anymore but only claim that "Our theory can accommodate this too." or "Our theory predicted this as well."

TomS · 9 May 2010

Andrew Stallard said: Yes, I am aware of all of this, but, as a former creationist myself it appears their "methodology" has changed. They don't even challenge other people's conclusions anymore but only claim that "Our theory can accommodate this too." or "Our theory predicted this as well."
And their "theory" can "accommodate" anything, to such a degree that it is fair to ask what their "theory" is. What sort of thing is created/designed, and what is not? Are individual living things, one by one, created/designed, and if so, at what (apparent) age? Or are novel organs inserted into already living things? Or are whole tribes of living things created/designed? Or does creation/design result in a whole lineage, all of the individuals that ever will exist? Or maybe a whole mature, interacting, ecological system of individuals of various (apparent) ages, predators and prey and physical environment? Is the pattern of correspondences and differences in DNA, anatomy, and biochemistry within a biological taxon and between taxa created/designed?

harold · 9 May 2010

Andrew Stallard -
Yes, I am aware of all of this, but, as a former creationist myself it appears their “methodology” has changed. They don’t even challenge other people’s conclusions anymore but only claim that “Our theory can accommodate this too.” or “Our theory predicted this as well.”
I have noticed this from some creationists. A lot of times an emphasis on attacking hypotheses of abiogenesis, rather than the theory of evolution, is part of this approach. However, older styles live on. I have no idea whether Casey Luskin has ever strongly stated his true beliefs in public, but he cranks out "contradict every finding in biomedical science that gets into the media" stuff endlessly. The classic creationist approach - make inaccurate attacks on science, implying the false dichotomy that "creationism must win" if mainstream science is attacked. As a former creationist, perhaps you can comment on this... I have learned to interpret the behavior of the unrepentant creationists as follows. I take them as basically being authoritarians who think in terms of "winning". I don't see them as caring about the objective truth, almost in the way that a born deaf person doesn't care about (external) music. I don't conjecture as to how they got this way, but it seems that to them, evidence is a tactic. The only test of truth is whether the person who advocates a position can "win", whatever methodology is used. All assertions are equal; you choose the social/religious/political reality you prefer and then deny any fact or theory that seems to be remotely at odds with it, using any denial tactics whatsoever. Tactics that can be used trivially include - hiding or even denying your full underlying agenda if you think that will help, using arguments that you know have been disproved in another forum, repeating disproved arguments right back at the person who disproved them, using massive numbers of weak arguments in a short period of time to make full rebuttal very difficult, constantly creating straw man versions of your opponents' true positions, and always using loaded language. Eg. http://www.wnd.com/news/article.asp?ARTICLE_ID=54083 I defend this as a fairly good description of creationist behavior. I don't claim that this method of understanding them gives me insight into their private thoughts, just that it allows me to predict them.

Mike Elzinga · 9 May 2010

harold said: I defend this as a fairly good description of creationist behavior. I don't claim that this method of understanding them gives me insight into their private thoughts, just that it allows me to predict them.
Your description looks pretty accurate. Their tactics have been around since Morris and Gish, but lately, Ken Ham’s and his AiG staff have been getting far more aggressive at making outrages assertions about scientists and science. I recently found this example of Thomas Kindell using, in one talk, almost every tactic I have seen over the years. They have adopted the tactic of reciting almost word-for-word the very accusations that have been leveled against them and redirecting them at the science community. It strikes me as an even more conscious and intense tactic of taunting. Over the years the science community has caught on to the creationist taunting shtick. Duane Gish loved to taunt, and he apparently knew some science instructors couldn’t resist what appeared to be an easy take-down of Gish’s silly arguments and claims. What these instructors didn’t know was that these “debates” were traps that allowed creationists to leverage visibility and “respectability” while giving them an excuse to claim that there was some real controversy that was being hidden from the public. But now that the science community no longer allows ID/creationists to climb onto their coattails, the taunting has become even more extreme, angrier, and more ludicrous. The ID/creationists’ fundamental misconceptions don’t seem to have changed significantly. They keep making adjustments and adding confusing words, all the while attempting to project an image of being able to “stay in the game” and debate anyone. I think they still crave power and adulation within their own community. And I also think that many of the leaders (Ken Ham for example) are in it for the money, the power, and the desire to somehow establish some kind of theocracy.

raven · 9 May 2010

Lenny Flank: The creationists are quite open in their belief that evolutionary theory, even theistic evolution, is, quite literally, the work of the Devil: "Behind both groups of evolutionists one can discern the malignant influence of 'that old serpent, called the Devil, and Satan, which deceiveth the whole world'." (Morris, 1963, p. 93) Indeed, one of the founders of the modern creationist movement, Dr. Henry Morris, has declared that evolutionary theory was given to Nimrod by Satan himself, at the Tower of Babel: "Its top was a great temple shrine, emblazoned with zodiacal signs representing the hosts of heaven, Satan and his 'principalities and powers, rulers of the darkness of the world' (Ephesians 6:12). These evil spirits there perhaps met with Nimrod and his priests, to plan their long-range strategy against God and his redemptive purposes for the post-diluvian world. This included especially the development of a non-theistic cosmology, one which could explain the origin and meaning of the universe and man without acknowledging the true God of creation. Denial of God's power and sovereignty in creation is of course foundational in the rejection of His authority in every other sphere. . . . If something like this really happened, early in post-diluvian history, then Satan himself is the originator of the concept of evolution. "One question remains. Assuming Satan to be the real source of the evolutionary concept, how did it originate in his mind? . . . A possible answer to this mystery could be that Satan, the father of lies, has not only deceived the whole world and the angelic hosts who followed him--he has even deceived himself! The only way he could really know about creation (just as the only way we can know about creation) was for God to tell him! . . . . He refused to believe and accept the Word of God concerning his own creation and place in God's economy . . . He therefore deceived himself into supposing that all things, including himself and including God, had been evolved by natural processes out of the primordial stuff of the universe. . . ." (Morris, Troubled Waters of Evolution, 1974, pp 74-75). Thus, concludes Morris, "The entire monstrous complex was revealed to Nimrod at Babel by demonic influences, perhaps by Satan himself . . . Satan himself is the originator of the concept of evolution." (Morris, Troubled Waters of Evolution, 1974, pp 74-75)
The most common creationist tactic hasn't changed a bit. They lie. Morris claims that evolution was invented by Satan and handed to Nimrod at the Tower of Babel. What is odd is that nothing that he claims is in the bible is actually in the bible. He just made it all up. One of the striking things about creationism is that it forces people to be evil and lie a lot. I suppose it isn't surprising that a few of them like Hovind have ended up in prison.

Mike Elzinga · 9 May 2010

raven said: The most common creationist tactic hasn't changed a bit. They lie. Morris claims that evolution was invented by Satan and handed to Nimrod at the Tower of Babel. What is odd is that nothing that he claims is in the bible is actually in the bible. He just made it all up. One of the striking things about creationism is that it forces people to be evil and lie a lot. I suppose it isn't surprising that a few of them like Hovind have ended up in prison.
And it is interesting how often Hovind and other creationists use the word “lie” when preaching about textbooks and “evolutionists.” It’s pure, brazen chutzpa. Whether or not these people actually believe what they are accusing “evolutionists” of, they are certainly conscious of the fact that they are using the tactic to extract money from fearful, paranoid fundamentalists.

Andrew Stallard · 9 May 2010

harold said: Andrew Stallard -
Yes, I am aware of all of this, but, as a former creationist myself it appears their “methodology” has changed. They don’t even challenge other people’s conclusions anymore but only claim that “Our theory can accommodate this too.” or “Our theory predicted this as well.”
I have noticed this from some creationists. A lot of times an emphasis on attacking hypotheses of abiogenesis, rather than the theory of evolution, is part of this approach.
Well, when I was younger I attended a private Christian School that used the Beka Book curriculum published by Pensacola Christian College Press. These textbooks unconditionally affirmed the inerrancy of the Bible but in their "science" books they did present pseudoscientific arguments against evolution such the idea that evolution is contrary to the second law of thermodynamics, transitional fossils do not exist, or that radiometric dating is a crock because nobody knows the initial conditions. As false as they are, at least they required a little thinking, and required some serious investigation to find out why they are wrong. It seems now they have lost their creative edge now that their original ideas have been so thoroughly debunked.
However, older styles live on. I have no idea whether Casey Luskin has ever strongly stated his true beliefs in public, but he cranks out "contradict every finding in biomedical science that gets into the media" stuff endlessly. The classic creationist approach - make inaccurate attacks on science, implying the false dichotomy that "creationism must win" if mainstream science is attacked. As a former creationist, perhaps you can comment on this... I have learned to interpret the behavior of the unrepentant creationists as follows. I take them as basically being authoritarians who think in terms of "winning". I don't see them as caring about the objective truth, almost in the way that a born deaf person doesn't care about (external) music. I don't conjecture as to how they got this way, but it seems that to them, evidence is a tactic. The only test of truth is whether the person who advocates a position can "win", whatever methodology is used. All assertions are equal; you choose the social/religious/political reality you prefer and then deny any fact or theory that seems to be remotely at odds with it, using any denial tactics whatsoever. Tactics that can be used trivially include - hiding or even denying your full underlying agenda if you think that will help, using arguments that you know have been disproved in another forum, repeating disproved arguments right back at the person who disproved them, using massive numbers of weak arguments in a short period of time to make full rebuttal very difficult, constantly creating straw man versions of your opponents' true positions, and always using loaded language. Eg. http://www.wnd.com/news/article.asp?ARTICLE_ID=54083
Now you are certainly correct in that creationists want to "win" at all costs. However, let us be specific as to exactly what that prize is. They want to convert people to Christian fundamentalism. All the creationists of the Morris/Gish variety on whose works I grew up with were merely "witnessing*," and they were explicit about it. If they thought an argument would convert somebody to their faith, they would use it. Since they believe "The stakes are eternal" no other considerations can be placed ahead of the goal of getting people "saved.**" You are wrong if you think they don't believe in objective truth. They have absolute certitude that they have the perfect and complete truth. They know Jesus Christ as their personal Savior who also makes it clear to them the entire Bible is true. They and all other like them will spend eternity in Heaven, while all those who come to different conclusions will burn forever in Hell. Now, the closest thing I have ever heard of that attempts to square the circle between their absolute cock-sureness and their assignment of a secondary role for evidence is a doctrine called presuppositionalist apologetics. Now, there are multiple versions of this but it boils down to the idea that Fundamentalist Christianity is absolutely true and all evidence supports it but you must first "pre-suppose" it in order to understand. (It is worth noting that many fundamentalists when hearing this actually do not believe it. It is too obviously an example of question-begging.) As far as understanding how their minds work, creationism can not be understood outside the context of the Christian Fundamentalism that spawns it. One book on that I recommend is Edmund D. Cohen's Mind of the Bible Believer. From my own experience, it is a very good exposition of the Christian fundamentalist mentality and how their philosophy and psychology work.
I defend this as a fairly good description of creationist behavior. I don't claim that this method of understanding them gives me insight into their private thoughts, just that it allows me to predict them.
* For those not in the know, "witnessing" in Christian fundamentalist jargon means going out and preaching to people on a one-to-one basis. Since they (in their minds) have firsthand experience of Jesus or the Holy Spirit they think themselves having "witnessed" those beings just like one would a crime. (No, they believe this. I'm not kidding.) ** Being "saved," means one is certain to go to Heaven no matter what. Since they believe all sin from masturbation to murder pisses off God to the point he condemns you to Hell, only grace provided by Jesus' substitutionary atonement makes salvation possible. Only those who accept grace, which, entails believing the entire Christian fundamentalist package, go to Heaven. All those who don't, go to Hell independently of anything else they might or might not have done. This idea is they place no emphasis on ethics beyond what is necessary for public relations. The only reason for the "saved" to act morally is to uphold one's reputation. (Often this is called "your testimony" in their circles.) *Whew!*

Andrew Stallard · 9 May 2010

harold said: I have noticed this from some creationists. A lot of times an emphasis on attacking hypotheses of abiogenesis, rather than the theory of evolution, is part of this approach. However, older styles live on. I have no idea whether Casey Luskin has ever strongly stated his true beliefs in public, but he cranks out "contradict every finding in biomedical science that gets into the media" stuff endlessly. The classic creationist approach - make inaccurate attacks on science, implying the false dichotomy that "creationism must win" if mainstream science is attacked. As a former creationist, perhaps you can comment on this...
As far as Luskin and the rest of the ID crowd goes, I really can't tell what is driving them. Although I suspect some of them in their hearts, believe in God about as much as Richard Dawkins does. Nevertheless, they want to promote religion among the working classes because they think unless "the masses" fear divine retribution they will rape, kill, pillage, and burn everything in sight.

harold · 9 May 2010

Mike Elzinga -
They have adopted the tactic of reciting almost word-for-word the very accusations that have been leveled against them and redirecting them at the science community.
Thank you for mentioning that. I completely forgot to include "inaccurately project your own obvious flaws and biases onto your opponents" in my list of acceptable creationist tactics. (By the way, I read your comment about submarine coffee. I'm pretty impressed that the coffee was good enough that hydraulic oil could noticeably change the taste. I've never been in the navy, but I used to make a common low cost large batch industrial brand of coffee (that will go un-named) as part of a dishwashing job, and I'm fairly sure I could have added a can of crankcase oil to every batch without anyone noticing. Obviously, that didn't stop me from drinking it; how else would I know? Also, obviously, adding the cost of crankcase oil - or anything else - to the product would have defeated my employer's purpose in using it. Although another employee - a "skatepunk" - used to make the stuff twice as strong as he was supposed to, which greatly increased its popularity. The flavor was not much worse and the buzz was doubled.) Andrew Stallard - I have no major disagreements, but...
You are wrong if you think they don’t believe in objective truth. They have absolute certitude that they have the perfect and complete truth.
Okay, but that IS rejecting the concept of objective truth. Objective doesn't mean "absolute", it means verifiable by any observer who can put their biases aside and examine the evidence. I will note that, lacking mind reading ability, it is virtually impossible to distinguish between someone who sincerely thinks God is telling him to deny scientific reality by any means necessary, and someone who has an ulterior motive for doing so. Adding to the complexity of the situation, even the most blatant con men often report that they begin to believe their own crap in the heat of the moment (this may be necessary for a good act), and many of the worst quacks and crackpots in other areas, even the ones who enrich themselves, are sincere, at least at the conscious level.
As far as Luskin and the rest of the ID crowd goes, I really can’t tell what is driving them. Although I suspect some of them in their hearts, believe in God about as much as Richard Dawkins does.
I would not only agree, but suggest that they care about the general concept of ethics, meaning of life, and so on a lot less than Dawkins. I can take Dawkins or leave him - he gets a lot of celebrity and income mileage out of simplified (although basically accurate) freshman biology delivered to Americans in an upper class British accent. But he was originally a faithful Anglican, and seems to care about honesty. For full disclosure, I am not remotely religious, but also not anti-religion, and I don't mean to imply that still-faithful Anglicans can't care about honesty - I'm sure many of them do.
Nevertheless, they want to promote religion among the working classes because they think unless “the masses” fear divine retribution they will rape, kill, pillage, and burn everything in sight.
I think you're giving them way too much credit here. My personal, subjective opinion is that Casey Luskin wouldn't give a damn about rape, pillage, or burning, unless it was happening to Casey Luskin.

Gerald · 9 May 2010

Peter Henderson said: First reactions from AiG: snip While Neanderthals remain something of a mystery even to creationists, the new research reminds us of the reality of what the Bible teaches: Neanderthals were neither ape-men nor inferior to other humans. Rather, as with all humans, Neanderthals were part of the one blood of humankind (Acts 17:26), and therefore carried the image of God (Genesis 1:27).
Anyone know where we can put a few fun questions to AiG? For example: Neanderthals and humans look quite different so which was made in God's image, Neanderthals or homo sapiens? If both, which is closer? How do you know that? So when do we engage in a breeding program so we get humans back to the master race as close to God as we can?

Dave Luckett · 9 May 2010

harold, I was not denying anything you said. I was questioning the power of natural selection in the case of humans only. The question, to my mind, is not whether adaptations to environment exist among humans - of course they do - but what is their power relative to the unique human capability of technology?

The Neanderthals were naturally adapted to a subarctic environment - Europe and western Asia in the Wurm and earlier ice ages - as far as it is possible for a hominid to be. They had in fact speciated under selection pressure, as the DNA studies show.

Nevertheless, they were rapidly displaced and then became extinct across their entire range (save for some arguable relict genes they may have passed to modern humans) when they came into contact with H. sapiens, a species apparently less well-adapted to the cold than they. It is difficult to attribute this to purely environmental factors, because it happened during the last ice age, when Europe was as cold as it had ever been. When the ice receded, beginning about twelve thousand years ago, the Neanderthals were already gone, and H sapiens - probably already the sole remaining hominid - was about to begin the slow development of agriculture and the climb (if it be a climb) to civilisation.

Positing that this summary is a roughly correct (as always, I stand ready to be corrected), it poses a conundrum. In what ways was H sapiens more fit for the environment of Europe in the ice age than H neanderthalis? And what does this tell us about ourselves?

Dax Williams · 9 May 2010

My father died in 1974. He always used to say I was a neanderthal. Guess he was ahead of his time

Robert Byers · 10 May 2010

A lesson here is also that once again the textbooks must be rewritten because what was concluded before had no science behind it. It can't. Origin issues are not scientific ones as the great creationist Henry Morris said.
Next week, I predict, they will find fully genetic Neanderthals living in New York city.
Probably voting Democratic.

Dave Lovell · 10 May 2010

raven asked: Did Neanderthals die out before or after the flood?
Why not consult the experts!
AIG states: Based on Scripture, creationists consider Neanderthals to have been fully human, descendants of Adam and Eve (through Noah), and therefore they would have lived in the same time and place as other humans.
That seems to be pretty definitive. Either all Neanderthals were direct descendants of Noah (maybe via some undocumented black sheep of the family) who must have lived only during his pre-flood lifetime before becoming extinct in the flood, or they diverged from the ark survivors post flood. Either way this paper has it backwards. The differences between Neanderthals and Modern Humans must result from divergence from the common ancestor Noah, with modern Africans being the evolutionary pace setters

hoary puccoon · 10 May 2010

As was demonstrated by a poster above, another creationist mantra is that science is continually changing its conclusions, therefore none of it is right.

The ability to adapt to new evidence is, of course, the basis and great strength of science. But in this case, as in many others, the amount that science actually changed its conclusions is largely in the minds of newspaper headline writers. Everyone working in the field seemed to be aware that the lack of Neanderthal genes in modern human mitochondria didn't necessarily mean there were no Neanderthal genes in modern human nuclear DNA. So this study wasn't so much correcting an error as refining a somewhat fuzzy picture.

Pete Dunkelberg · 10 May 2010

Points in favor of AiG's accommodation: Dornier Pfeil earlier reminded us of the Nephilim, quite consistent with possible interbreeding occurring in the middle east. And don't forget Lilith, Adam's first wife and later Dembski's nemesis.

eric · 10 May 2010

djlactin said: My point was that European caucasians (excluding caucasians currently living in India, who have been selected for darker skin -- carcinomas and such) are starkly different from, shall I say, "typical" humans.
Here's one possible explanation for it. Short summary: the Atlantic gulf stream makes it possible to grow grains in high European latitudes. This is a great benefit in terms of food availability, but a grain-based diet does not provide much vitamin D, so paler skin becomes more of an advantage. Without the gulf stream, no grain. Without the grain, scandinavians etc...would probably have the skin tone of inuit. Or so the web site says. Its not a peer-reviewed publication but sounds like a reasonable hypothesis to me.

Fintan · 10 May 2010

I don't like the species name Homo Sapiens, for those who may not know, it means wise man,a bit arrogant to call ourselves that, with plenty of evidence to the contrary. Anyway "Homo Sapiens" were only one of several human sub-species that co-existed in the past.

Genetic studies on sub-saharan Africans has found significent archaic homonoid genetic insertions that are not found in other populations. Unfortunately climatic and topographic issues in Africa do not provide a good envoirment for the preservation of ancient dna bearing remains.So it is impossible in the present to genetically reconstruct this African ancestor[s].There is also a very strong morphological case for a large imput from Asian Homo Erectus in modern East Asians. Hopefully antropology will come to a rational consensus between the two extremes ,out of africa and multi-regional emergence.

harold · 10 May 2010

Dave Luckett - Interesting. I can't help adding a few thoughts.
The Neanderthals were naturally adapted to a subarctic environment - Europe and western Asia in the Wurm and earlier ice ages - as far as it is possible for a hominid to be. They had in fact speciated under selection pressure, as the DNA studies show. Nevertheless, they were rapidly displaced and then became extinct across their entire range (save for some arguable relict genes they may have passed to modern humans) when they came into contact with H. sapiens, a species apparently less well-adapted to the cold than they.
"Rapid" being a relative term as there were tens of thousands of years of co-existence. Also, although H. sapiens appears to have been biologically less adapted to the cold climate, they may have had equal or greater technological and cultural adaptation.
It is difficult to attribute this to purely environmental factors, because it happened during the last ice age, when Europe was as cold as it had ever been.
It's certainly plausible that modern humans played a role in the extinction of the Neanderthal, perhaps by over-harvesting some resource that both used but that the latter were more inflexibly dependent on, for example. It is also quite possible that H. sapiens was a minor factor, or played no role, in the extinction. There weren't very many of either around. Many large mammal species, with low populations, went extinct during the ice age. We tend to take "credit" for that, but large, slow-reproducing species are always under a fair amount of extinction pressure, especially in a harsh and changing environment. Our own species may have survived a few bottlenecks itself.

harold · 10 May 2010

Indeed, we don't know what the genetic barriers, if any, were for hybridization between the hominid species we recognize almost solely on the basis of bone morphology.

In fact, although I suppose it's highly unlikely, a scenario in which the H. sapiens population was 25 to 100 times that of the Neanderthal population, and there was total hybridization, would equally explain the current genetic observations.

Aagcobb · 10 May 2010

DS said: Did Neanderthals have the same chromosome complement as chimpanzees, or did they have the same fusion seen in humans? Their mitochondrial DNA is intermediate between chimps and humans as is their nuclear DNA, but how many SINE insertions do they share in common with humans?
I didn't see anyone else respond to this, so I just wanted to point out that Neanderthal mitochondrial DNA is not intermediate between Chimps and Homo Sapiens. Neanderthals were as different from chimps genetically as we are. In fact, this new evidence strongly indicates that Neanderthals are not a separate species from us because we could produce fertile offspring together, but rather a subspecies. Thus they would be Homo Sapiens Neanderthalensis, and we would be Homo Sapiens Sapiens.

raven · 10 May 2010

Genetic studies on sub-saharan Africans has found significent archaic homonoid genetic insertions that are not found in other populations.
What??? Not that I ever heard. Africans are more genetically diverse than other populations. Consistent with them being the founder population of all the others with people shedding genetic diversity as they move out in small founder groups. But there is nothing "archaic" or "homonoid" about that.
There is also a very strong morphological case for a large imput from Asian Homo Erectus in modern East Asians.
Never heard that either. We have a lot of different individual DNA sequences now. If there were Asian H. Erectus genes in modern East Asians, someone should have seen it in their genomes.

stevaroni · 10 May 2010

Robert Byers said: A lesson here is also that once again the textbooks must be rewritten because what was concluded before had no science behind it.
You. Moron. Textbooks are re-written regularly as new information constantly allows us to refine our picture of the world. Data in any scholarly context is constantly being checked, rechecked, refined and revised to asymptotically converge on reality. The Bible, on the other hand, has, aside from known translation and transcription errors, not undergone even a minor fact-checking in 2000 years. And yet somehow, you find the information in science textbooks less reliable exactly because it undergoes constant verification. Idiot.

DS · 10 May 2010

Aagcobb said:
DS said: Did Neanderthals have the same chromosome complement as chimpanzees, or did they have the same fusion seen in humans? Their mitochondrial DNA is intermediate between chimps and humans as is their nuclear DNA, but how many SINE insertions do they share in common with humans?
I didn't see anyone else respond to this, so I just wanted to point out that Neanderthal mitochondrial DNA is not intermediate between Chimps and Homo Sapiens. Neanderthals were as different from chimps genetically as we are. In fact, this new evidence strongly indicates that Neanderthals are not a separate species from us because we could produce fertile offspring together, but rather a subspecies. Thus they would be Homo Sapiens Neanderthalensis, and we would be Homo Sapiens Sapiens.
Actually, both Neanderthal mitochondrial DNA and nuclear DNA are intermediate between humans and chimps, even though it is closer to human than chimp. That is why it is so important to determine whether Neanderthals share the chromosomal fusion or not. Even if they are considered to be subspecies, they are still genetically distinct from modern humans. Lack of the chromosome fusion would reduce the degree of introgressive hybridization. If the fusion occurred millions of years ago, then they should share it. If it occurred less than one million years go, they may not. The SINE data should also prove to be interesting, as Neanderthals would once again be expected to be intermediate between modern humans and chimps. But perhaps the most exciting aspect is the changes in regulatory regions that have been discovered. This will allow the identification of important developmental pathways that are critical in the evolution of modern human morphology and brain function.

Matt Young · 10 May 2010

You. Moron. ... Idiot.
No more than one response each to Mr. Byers, please, and keep them civil. Further responses will find themselves on the Bathroom Wall.

raven · 10 May 2010

Ann Gibbons Science News Focus The team also used the Neandertal DNA like a probe to find the genes that make us modern. Even though the genomes of humans and Neandertals are 99.84% identical, the researchers identified regions that have changed or evolved since our ancestors and Neandertals diverged sometime between 270,000 and 440,000 years ago—their new, slightly younger estimate of the split.
One strange thing about the Science papers. Ann Gibbons says that humans and Neanderthals are 99.84% identical in sequence. Two humans can differ by up to 15 million base pairs. This is a maximum difference of .5% so two humans can be 99.5% identical. If one takes these numbers at face value, Neaderthals differ from humans less than humans differ among themselves. I haven't figured this one out yet. It looks like they might have compared the Neaderthal genome to an average human genome and came up with that number or only considered differences found in Neanderthals and not in any human genome. At any rate, they seem to fall just outside of contemporary human genetic diversity, closely related.

John Vanko · 10 May 2010

Ever notice the similarity of characteristics between AIG and the Taliban? (Speech, tactics, insistence on inerrancy [they are the judge of what's inerrant and what's not; they will interpret the Bible for me], need for indoctrination in schools, fighting Satan)

Scary, isn't it?

Natman · 10 May 2010

Robert Byers said: A lesson here is also that once again the textbooks must be rewritten because what was concluded before had no science behind it. It can't. Origin issues are not scientific ones as the great creationist Henry Morris said.
I doubt the 'great creationist' Henry Morris would've known what science was if it hit him in the face. Two quotes of his:
No geological difficulties, real or imagined, can be allowed to take precedence over the clear statements and necessary inferences of Scripture.
and
When science and the Bible differ, science has obviously misinterpreted its data.
show that he was narrow minded, dogmatic and unwilling to change his opinions based on new evidence. The fact is the ability of science to adapt and alter theories and hypothesis to match new data is one of it's greatest strengths. Unlike fundamental religion, whose first response to new information is 'how can we make this fit our dogma?', the first response of science is 'how will this change our theory?' Every passing year strengthens the breadth and depth of knowledge contained in science and further moves (the majority) of humanity onwards. Science expects change, welcomes it, and is usually eager to adapt current thinking to meet new facts. Fundamentalism is stuck in the past, adhering to outdated and flawed belief systems with no rational basis and as such will die out in time. And that's my prediciton.

John Kwok · 10 May 2010

I decided that the best course would be trying to ignore him as much as possible and would advise others to follow in my wake:
Matt Young said:
You. Moron. ... Idiot.
No more than one response each to Mr. Byers, please, and keep them civil. Further responses will find themselves on the Bathroom Wall.

TomS · 10 May 2010

Natman said: Fundamentalism is stuck in the past, adhering to outdated and flawed belief systems with no rational basis
Fundamentalism would like to believe that it is stuck in the past, but it is rather a modern reaction to the modern, with its own novelties.

Stanton · 10 May 2010

TomS said:
Natman said: Fundamentalism is stuck in the past, adhering to outdated and flawed belief systems with no rational basis
Fundamentalism would like to believe that it is stuck in the past, but it is rather a modern reaction to the modern, with its own novelties.
Indeed, fundamentalists want to return to their own idealized image of what they think is the past, so that they can either achieve a lifestyle where they can be as pious as they assumed their ancestors were, but with all the creature comforts of the present, or that they can somehow live like their ancestors did, but ignore all the downsides of living like a peasant (i.e., working from dawn till dusk, chronic bad hygiene, poor diet, being ignorant of how diseases are spread, etc.)

Jesse · 10 May 2010

Stanton said:
TomS said:
Natman said: Fundamentalism is stuck in the past, adhering to outdated and flawed belief systems with no rational basis
Fundamentalism would like to believe that it is stuck in the past, but it is rather a modern reaction to the modern, with its own novelties.
Indeed, fundamentalists want to return to their own idealized image of what they think is the past, so that they can either achieve a lifestyle where they can be as pious as they assumed their ancestors were, but with all the creature comforts of the present, or that they can somehow live like their ancestors did, but ignore all the downsides of living like a peasant (i.e., working from dawn till dusk, chronic bad hygiene, poor diet, being ignorant of how diseases are spread, etc.)
Revisionist history included. Unlike them, if my ancestors did something that I consider bad, I'd like to know about it. History does us no good if it is not fairly accurate. It's kind of funny, but I had a girl tell me that I would like to live back in the 1870s or 1880s. I responded "Sure, but only if I could get modern medical care."

raven · 10 May 2010

It’s kind of funny, but I had a girl tell me that I would like to live back in the 1870s or 1880s.
The average American lifespan in 1900 was 47, 30 years less than today. I have no idea what it was in 1870 but it wasn't higher. A lot of that mortality was children dying of common childhood diseases of the time. But there is nothing stopping that girl from adopting an 1870 lifestyle or even a stone age one. It is a free country. The Amish do so, although many of them take advantage of modern medicine. Or she could just move to Afghanistan, Somalia, or a few other backward parts of the world.

Jesse · 10 May 2010

raven said:
It’s kind of funny, but I had a girl tell me that I would like to live back in the 1870s or 1880s.
The average American lifespan in 1900 was 47, 30 years less than today. I have no idea what it was in 1870 but it wasn't higher. A lot of that mortality was children dying of common childhood diseases of the time. But there is nothing stopping that girl from adopting an 1870 lifestyle or even a stone age one. It is a free country. The Amish do so, although many of them take advantage of modern medicine. Or she could just move to Afghanistan, Somalia, or a few other backward parts of the world.
Oh, no, she was referring to me. She most certainly does not want to live back then. I'm always grousing about how there's too many people and how I can't go to some place out in the boonies because it's fenced off, etc... It just happens to be the price of living in a time when antibiotics kill sinus infections before sinus infections kill you.

stevaroni · 10 May 2010

raven said: It’s kind of funny, but I had a girl tell me that I would like to live back in the 1870s or 1880s.
I guess she doesn't feel the need to have a right to vote (not till 1919 in the US).

Jesse · 10 May 2010

stevaroni said:
raven said: It’s kind of funny, but I had a girl tell me that I would like to live back in the 1870s or 1880s.
I guess she doesn't feel the need to have a right to vote (not till 1919 in the US).
Again, she was referring to me wanting to live back then. Not her.

Diogenes · 10 May 2010

Thanks to Andrew Stallard for trying to explain why Biblical literalists think this way. Of course, Glenn Morton is another ex-YEC, helpful in understanging them. Still, I can't entirely understand the *why*.

Andrew Stallard tells us that they believe in objective reality. OK... so then *why* do they lie? *Why* are they so willing to ignore truckloads of data? Does data mean nothing to them?

*Why* did Duane Gish lie about the protein that was more similar between humans vs. bullfrogs, than between humans vs. chimps? *Why* after copying the fake "monkey quote" (about how Java Man/Homo erectus was "monkey-like") and then getting caught, *why* could he not just admit that Homo erectus is not monkey-like at all? Would it kill Gish to admit he was wrong?

*Why* did Henry Morris lie in his infamous misquote of Ross and Rezak re: Lewis Overthrust (where he dropped the "millions" out of "million years" and made other ridiculous changes of meaning)?

*Why* did William Dembski repeatedly claim that his probability calculations in "No Free Lunch" were probabilities of evolutionary processes--when they were calculations of totally random combinations of amino acids? And he absolutely knows those numbers differ by hundreds of orders of magnitude.

Why? My theory:

Scientists are "bottom up." Get every little fact straight. Build your small theories from those facts, build your big theories from small confirmed theories and more facts. Then, and only then, decide how you feel about it. Is it wondrous or terrifying that space is so vast and empty and full of galaxies? Decide that only *after* you get every small detail right.

Creationists are "top down." First, begin with a feeling: moral and economic terror. If there's no micromanager God providing us with a literally-correct Bible, then we can't tell what's right and wrong. Then the "rational" thing to do is to go about a-killing and a-raping each other. This is scary, therefore there must be a micromanager God providing us with a literally-correct Bible. Facts? Data? Experimental results? All those small data points are unimportant, pick-n-choose them only according to whether it will help relieve the emotional state you started out with: moral and economic terror.

Am I right or wrong about this?

Of course, creationists flip it and say evolutionists are "top down": evolutionists start out assuming there's no God so... blah blah.

Aagcobb · 10 May 2010

DS said:
Aagcobb said:
DS said: Did Neanderthals have the same chromosome complement as chimpanzees, or did they have the same fusion seen in humans? Their mitochondrial DNA is intermediate between chimps and humans as is their nuclear DNA, but how many SINE insertions do they share in common with humans?
I didn't see anyone else respond to this, so I just wanted to point out that Neanderthal mitochondrial DNA is not intermediate between Chimps and Homo Sapiens. Neanderthals were as different from chimps genetically as we are. In fact, this new evidence strongly indicates that Neanderthals are not a separate species from us because we could produce fertile offspring together, but rather a subspecies. Thus they would be Homo Sapiens Neanderthalensis, and we would be Homo Sapiens Sapiens.
Actually, both Neanderthal mitochondrial DNA and nuclear DNA are intermediate between humans and chimps, even though it is closer to human than chimp.
I would like to know your source for this claim. According to the talkorigins page on this subject, Nenderthal mtdna is as different from chimp mtdna as ours is.

Gary · 10 May 2010

Well well,
I am not a biologist or a geneticist, and I misspoke. I do recall reading about neanderthals having 24 pairs of chromosomes, but I have no idea where the source was. I also thought it would be simple to determine when we examined samples of DNA. Guess they still have not determined this yet?
As for neanderthals being closer to chimps than us, I would assume that humans and neanderthals have the same latest common ancestor with chimps, so the divergence would be about the same. Perhaps our DNA from 30,000 years ago had the same divergence from chimps as the 30,000 year old neanderthal fossils we found, but current human DNA has a little more divergence because of 30,000 more years of mutations.

raven · 10 May 2010

Well well, I am not a biologist or a geneticist, and I misspoke. I do recall reading about neanderthals having 24 pairs of chromosomes, but I have no idea where the source was. I also thought it would be simple to determine when we examined samples of DNA. Guess they still have not determined this yet?
The only known source for Neanderthals having 24 pairs of chromosomes in Robert Sawyer's novel, Neanderthal Parallax. This is science fiction and, while it was a great series, it is not a scientific journal.
www.evolutionpages All great apes apart from man have 24 pairs of chromosomes. There is therefore a hypothesis that the common ancestor of all great apes had 24 pairs of chromosomes and that the fusion of two of the ancestor's chromosomes created chromosome 2 in humans. The evidence for this hypothesis is very strong. The Evidence Evidence for fusing of two ancestral chromosomes to create human chromosome 2 and where there has been no fusion in other Great Apes is: 1) The analogous chromosomes (2p and 2q) in the non-human great apes can be shown, when laid end to end, to create an identical banding structure to the human chromosome 2. (1) 2) The remains of the sequence that the chromosome has on its ends (the telomere) is found in the middle of human chromosome 2 where the ancestral chromosomes fused. (2) 3) the detail of this region (pre-telomeric sequence, telomeric sequence, reversed telomeric sequence, pre-telomeric sequence) is exactly what we would expect from a fusion. (3) 4) this telomeric region is exactly where one would expect to find it if a fusion had occurred in the middle of human chromosome 2. 5) the centromere of human chromosome 2 lines up with the chimp chromosome 2p chromosomal centromere. 6) At the place where we would expect it on the human chromosome we find the remnants of the chimp 2q centromere (4). Not only is this strong evidence for a fusion event, but it is also strong evidence for common ancestry; in fact, it is hard to explain by any other mechanism.
The human chromosome 2 is a fusion of two ape chromosomes. The sequence of the end to end junction is known and expected for an end to end joining. So, by looking in the Neanderthal genomic sequence, we should see that junction point...or not. So it would be possible to determine if Neanderthal chromosome 2 is a H. sapiens type fusion. Given how closely related Neanderthals are to us, 99.84%, it is IMO, highly unlikely that they have 24 chromosome pairs.

Vaughn · 10 May 2010

Aagcobb said:
DS said: Actually, both Neanderthal mitochondrial DNA and nuclear DNA are intermediate between humans and chimps, even though it is closer to human than chimp.
I would like to know your source for this claim. According to the talkorigins page on this subject, Nenderthal mtdna is as different from chimp mtdna as ours is.
A reference I have immediately at hand (PNAS 98:537-542, 2001) supports DS. It reports a single Neanderthal mtDNA sequence that is closer to numerous extant humans (Aboriginal Australians) than to either Chimpanzee or Bonobo, but still roughly intermediate between the humans and chimps. Vaughn

Vaughn · 10 May 2010

Gary said: Well well, I am not a biologist or a geneticist, and I misspoke. I do recall reading about neanderthals having 24 pairs of chromosomes, but I have no idea where the source was. I also thought it would be simple to determine when we examined samples of DNA. Guess they still have not determined this yet? As for neanderthals being closer to chimps than us, I would assume that humans and neanderthals have the same latest common ancestor with chimps, so the divergence would be about the same. Perhaps our DNA from 30,000 years ago had the same divergence from chimps as the 30,000 year old neanderthal fossils we found, but current human DNA has a little more divergence because of 30,000 more years of mutations.
The standard method for determining chromosome number and structure (called a karyotype) is to grow cells in culture from an individual. Colchicine is added to disrupt the microtubules and arrest the cells at the metaphase stage, when the chromosomes are most condensed. Then the chromosomes are stained and photographed. This method obviously requires live cell donors. Theoretically, the chromosome number could be determined by full genome sequencing - as Raven points out, the telomeres have unique DNA sequence - but given the repetitive nature of telomeric sequence, the problems of assembling such repetitive elements into a complete and accurate sequence in undegraded DNA, the problems of getting multiple pass coverage of the full Neanderthal genome (degradation and contamination issues), in contrast to Raven, I am very skeptical that we will ever know the karyotype of an "average" Neanderthal. I would, however, love to be proved wrong. :-) Vaughn

DS · 10 May 2010

The reference I was referring to was this one:

Cell 134(3):416-417 (2008)

It shows pairwise comparisons between humans, Chimps and Neanderthals for the entire mitochondrial genome. It shows that humans and chimps have on average about 1,500 differences while Neanderthals and humans have on average about 200 differences. The human Neanderthal comparison is outside the range of human variation.

I was also referring to Figure 2 in the first Science paper which shows that Neanderthals are genetically distinct from modern humans and intermediate between humans and Chimps.

Thanks to Vaughn for the reference.

As for the chromosome number, yes, it seems like it should be easy to determine this based on the entire sequence. But, as Vaughn points out, this type of data might still leave some unanswered questions. I cannot find any definitive statement about this, but I have not read all of the papers yet. One would certainly presume that Neanderthals have the fusion, but either way it should prove to be very interesting.

raven · 10 May 2010

as Raven points out, the telomeres have unique DNA sequence - but given the repetitive nature of telomeric sequence, the problems of assembling such repetitive elements into a complete and accurate sequence in undegraded DNA, the problems of getting multiple pass coverage of the full Neanderthal genome (degradation and contamination issues), in contrast to Raven, I am very skeptical that we will ever know the karyotype of an “average” Neanderthal. I would, however, love to be proved wrong. :-)
Well, I see your point about repetitive sequence and the short length of old DNA. The diagnostic sequence would be telomere---reversed telomere as part of fusion sequence, (pre-telomeric sequence, telomeric sequence, reversed telomeric sequence, pre-telomeric sequence). It might be possible to see that fragment. There is also another diagnostic sequence for the fusion. The end to end joining gave 2 centromeres. There is some evidence that when this happens one gets suppressed, in this case "2q". Since it isn't being used, it diverges in sequence.
evolutionpages.com: (6) At the place where we would expect it on the human chromosome we find the remnants of the chimp 2q centromere (4).
It might be informative to see if there are "remnants of the chimp 2q centromere" type of sequence in Neanderthal chromosome 2. They used a microarray technique recently developed to fish out specific regions to sequence in samples that are heavily contaminated with other DNA. Ann Gibbons: "In a separate paper (p. 723), the team describes and successfully tests a new method for filling in gaps in the rough draft of the genome." They won't know if any of this will work until they try it.

Henry J · 10 May 2010

harold,

Our own species may have survived a few bottlenecks itself.

Yep. I've read (maybe on this blog?) that the amount of genetic variety in our species implies a bottleneck a little over 100,000 years ago. (Of course, that also implies that the amount of variety in our species has been fairly continuously increasing for a bit over 100,000 years.) ----- Aagcobb,

Actually, both Neanderthal mitochondrial DNA and nuclear DNA are intermediate between humans and chimps, even though it is closer to human than chimp.

I would like to know your source for this claim. According to the talkorigins page on this subject, Nenderthal mtdna is as different from chimp mtdna as ours is. I don't see any conflict between those two statements. Arrange the genetic "distances" as a triangle, two long sides and one short side, chimp at the intersection of the two long sides, with human and Neanderthal at each end of the short side. Another thought: I wonder if human DNA would probably qualify as "intermediate" between chimp and Neanderthal? Henry

amyc · 11 May 2010

John Kwok said: Who said I'm a liberal? Apparently you haven't heard of my "affection" for a certain American president and two of his closest aides, who, unfortunately, are fellow alumni of our high school. Anyway I was concerned that this thread might digress into more political baiting that's occurred elsewhere here at PT, and thought that given the historic importance of this report on the "rough draft" of the Neanderthal genome, didn't want to see any similar incidents here.
I think he meant libertarian. How are you doing tonight john?

amyc · 11 May 2010

W. H. Heydt said:
Paul Burnett said:
raven said: ...this is never going to end unless (creationists) gain control of our society, kill the scientists, and burn the libraries.
That's their ultimate goal - the Theocratic States of America. Look up Christian Reconstructionism, or see http://en.wikipedia.org/wiki/Dominionism. This was even a staple of science fiction a few decades ago. Some of Robert Heinlein's and Andre Norton's dystopian novels had that as a subject.
In Heinlein's _Future History_ universe, the fundie takeover came with the election of Nehemiah Scuder in...2012.
It all scares me, seeing as how I lived with people who thought that way for the first 18 years of my life. Has anyone here read Republican Gamorrah? I can't remember who the author is right now, but that book scared the hell out of me.

amyc · 11 May 2010

Diogenes said: Thanks to Andrew Stallard for trying to explain why Biblical literalists think this way. Of course, Glenn Morton is another ex-YEC, helpful in understanging them. Still, I can't entirely understand the *why*. Andrew Stallard tells us that they believe in objective reality. OK... so then *why* do they lie? *Why* are they so willing to ignore truckloads of data? Does data mean nothing to them?
Most creationists don't believe they are lying. The ones you talk about are the famous ones: they write books and give speeches and such. These people know what they are doing, and are called liars (rightly so). The regular-run-of-the-mill creationist usually doesn't have any background in science. They tend to believe whatever book on creationism or speaker they just heard, because to the untrained ear it sounds like it could be correct. Believe me, I used to be one of them. I didn't think I was lying. I was just repeating what people who were more knowledgeable (or at least I thought so) had told me. Some "civilian" creationists (as I like to call them) don't even realize they are creationists or label themselves as such. I know many people who tell me they believe in Genesis when asked where the universe and life came from, but when I ask if they believe evolution is true they say they never really thought about it. Many people tend to believe what is culturally acceptable in their family/church/community without really thinking about the evidence. So when they hear a creationist speaker or read one of their books, it just reaffirms what they already believed. In this sense, I don't believe that "civilian" creationists are liars, because they truly don't know any better. They are "inadvertent liars."

Diogenes · 11 May 2010

amyc said: Most creationists don't believe they are lying. The ones you talk about are the famous ones: they write books and give speeches and such. These people know what they are doing, and are called liars (rightly so). ...Some "civilian" creationists (as I like to call them) don't even realize they are creationists or label themselves as such. ...I don't believe that "civilian" creationists are liars, because they truly don't know any better. They are "inadvertent liars."
Yeah, I get the distinction between "civilians" who know little science and can't be blamed, and "generals" who know some science, cherry-pick data, ignore contrary evidence, and make stuff up. I get that. Of course I have "civilians" in my family, close to me. I was indirectly informed I am no longer godfather to my niece and nephew. But it's the "generals" I don't understand. They know they're making stuff up. Would it kill Duane Gish to admit the bullfrog protein didn't exist? *Why* did William Dembski lie about the probabilities he calculated in "No Free Lunch"? What are they so scared of? I mean, they all worship the Bible, literally. Like it's so great, you have to worship it, twist facts if you have to to defend it, lie, whatever. What's the appeal? Is the Bible that great? Right now I'm involved in a back-and-forth argument with a creationist blogger about whether rape and sex slavery are sanctioned in the Bible. Oh, they say they believe in a literal interpretation, but heaven forbid you should point out the literal descriptions of genocide, rape, infanticide, and slavery. Then they'll fight tooth and nail. So what motivates this visceral desire to defend Biblical literalism? Two theories: A. Is it just moral terror? The fear that without God giving us his word in book form, the rational thing to do would be to go about a-killing and a-raping? B. Is the observation that there are people different from myself-- who listen to music I don't like, vote for politicians I don't like, dress in ways that I don't like-- and there must be a cause for all this-- that they don't share my religious beliefs? So if I convert everybody to my religion, no longer will there be human behaviors I can't figure out, because they'll all act like me.

TomS · 11 May 2010

Ecclesiastes 7:10 Do not ask why the old days were better than the present; for
that is a foolish question

raven · 11 May 2010

But it’s the “generals” I don’t understand. They know they’re making stuff up.
For a lot of the leaders, it is all about power and money. Their cults and themselves. How hard is it to just lie a lot and make stuff up? Most creationists are also xian Domininionists. The financier of the DI is Howard Ahmanson, a disciple of Rushdooney, the psychopathic theologian who founded the ideology. The DI itself is straight xian Dominionist. These people aren't hiding anything. They hate the USA, democracy, secularism, the Enlightenment, among other things. They would destroy the USA if they could. Creationism is just a means to an end, a dark end.

utidjian · 11 May 2010

John Kwok said: I decided that the best course would be trying to ignore him as much as possible and would advise others to follow in my wake:
Matt Young said:
You. Moron. ... Idiot.
No more than one response each to Mr. Byers, please, and keep them civil. Further responses will find themselves on the Bathroom Wall.
John, You leave a wake? I hadn't noticed ;) -DU-

Vaughn · 11 May 2010

raven said: Well, I see your point about repetitive sequence and the short length of old DNA. The diagnostic sequence would be telomere---reversed telomere as part of fusion sequence, (pre-telomeric sequence, telomeric sequence, reversed telomeric sequence, pre-telomeric sequence). It might be possible to see that fragment.
The human telomere is a hexamer (TTAGGG) repeated thousands of times. Thus the sequence of the fusion would be TTAGGGCCCTAA buried in the midst of 20kbp (or more) of repeated DNA. Accurately finding that sequence by assembling 70bp average reads (what they are obtaining from Neanderthal) will likely be impossible. Riethman, et al., (Nature, 409:948-951, 2001) had difficulty assembling human telomeres starting from BAC sized fragments (100kb-350kb). Sorry to be a rain cloud, but I don't think fused telomeres can be identified in Neanderthal genomic sequence.
raven said: There is also another diagnostic sequence for the fusion. The end to end joining gave 2 centromeres. There is some evidence that when this happens one gets suppressed, in this case "2q". Since it isn't being used, it diverges in sequence. It might be informative to see if there are "remnants of the chimp 2q centromere" type of sequence in Neanderthal chromosome 2.
While telomeres are tens of kb of repetitive DNA, centromeres are MEGAbases of repeats. I am a cumulonimbus of doubt that centromere sequence can be obtained from Neanderthal remains. Vaughn

Mike Elzinga · 11 May 2010

raven said:
But it’s the “generals” I don’t understand. They know they’re making stuff up.
For a lot of the leaders, it is all about power and money. Their cults and themselves. How hard is it to just lie a lot and make stuff up? Most creationists are also xian Domininionists. The financier of the DI is Howard Ahmanson, a disciple of Rushdooney, the psychopathic theologian who founded the ideology. The DI itself is straight xian Dominionist. These people aren't hiding anything. They hate the USA, democracy, secularism, the Enlightenment, among other things. They would destroy the USA if they could. Creationism is just a means to an end, a dark end.
It’s not hard to find the evidence. Just look at Ken Ham’s “State of the Nation” addresses. Or look at AiG’s “Statement of Faith”. Or look at the the accusations and caricatures painted by Thomas Kindell. His other videos are just as bad. Then there are all of Kent Hovind’s vile videos. These people are not only full of hatred, they want power and money. And most of them are carefully treading just short of the line of criminal behavior with their incitements of hatred and paranoia. This has been the major downside of “freedom of religion” in this country. Fundamentalism has become a haven for charlatans and demagogues. And their frequent attempts to push laws that prevent protection from “freedom from religion” (i.e., give free rein to government sanctioned sectarian proselytizing) is a step in the direction of a theocracy.

raven · 11 May 2010

The human telomere is a hexamer (TTAGGG) repeated thousands of times. and I am a cumulonimbus of doubt that centromere sequence can be obtained from Neanderthal remains.
evolutionpages.com: The telomere sequence is highly conserved in different groups of organisms. For example vertebrates have the sequence TTAGGG repeated many times. (In primates the sequence is repeated 500 to 3500 times). Adjacent to the telomere, are regions with other DNA repeats (known as Telomere Associated Repeats) but these regions, rather than being highly conserved, are highly polymorphic - that is they have many variations even within the same species. Nevertheless the pretelomeric region can be easily recognised in closely related species. Occasionally genes are found in the pretelomeric region.
1. Not necesarily thousands of repeats for telomeres. Hundreds to thousands according to evolutionpages.com. And the chromosome 2 fusion is not a telomere. It is the remnants of two telomeric regions fusing and it appears to be old, possibly millions of years old based on the divergence of chimp centromere 2q. Without looking on the human sequence (too busy right now), it is likely to be shorter than the original two telomeres and have a lot of mutations from just TTAGGG repeats. 2. A prediction is that the TTAGGGCCCTAA sequence should be in the Neanderthal genome. 3. Another prediction is that the diverged, nonfunctional remnant of chimp 2q centromere should also be there. One doesn't have to sequence megabases of DNA to see if diagnostic fragment sequences are there or not and compare them to human and chimp sequences. 4. They used a microarray technique recently developed to fish out specific regions to sequence in samples that are heavily contaminated with other DNA. Ann Gibbons: “In a separate paper (p. 723), the team describes and successfully tests a new method for filling in gaps in the rough draft of the genome.” There are predicted sequences that should be present if Neanderthals are 23 pairs of chromosomes. The tools for this sort of sequencing project are very powerful and one can use them to fish out regions for sequencing. Sequencing Neanderthals which are so closely related to humans (99.84% in Ann Gibbons) is more like resequencing than sequencing. I can see a lot of ways to try and sequence these regions and wouldn't hesitate to try them all. Never know until you give it a try. We will just have to disagree, but even the Neanderthal sequence groups thought it was somewhere between difficult and impossible a few years ago to get a genomic sequence. Underestimating science is common and commonly wrong.

John Kwok · 11 May 2010

Was busy last night with a few friends attending a memorial tribute to one of our greatest photographers:
amyc said:
John Kwok said: Who said I'm a liberal? Apparently you haven't heard of my "affection" for a certain American president and two of his closest aides, who, unfortunately, are fellow alumni of our high school. Anyway I was concerned that this thread might digress into more political baiting that's occurred elsewhere here at PT, and thought that given the historic importance of this report on the "rough draft" of the Neanderthal genome, didn't want to see any similar incidents here.
I think he meant libertarian. How are you doing tonight john?
So, in a sense, you could say I was at a wake, especially when, after that memorial tribute, I ventured into the same bar, where, back in July, I attended an impromptu wake with two hundred other former students of a certain well known memoirist. By mere coincidence, I found myself sitting next to a color photo of my "father", while talking with my photographer friends last night.

John Kwok · 11 May 2010

Apparently others have been listening since they haven't been talking about a certain demented creo from north of the border:
utidjian said:
John Kwok said: I decided that the best course would be trying to ignore him as much as possible and would advise others to follow in my wake:
Matt Young said:
You. Moron. ... Idiot.
No more than one response each to Mr. Byers, please, and keep them civil. Further responses will find themselves on the Bathroom Wall.
John, You leave a wake? I hadn't noticed ;) -DU-

Aagcobb · 11 May 2010

Diogenes said:
amyc said: Most creationists don't believe they are lying. The ones you talk about are the famous ones: they write books and give speeches and such. These people know what they are doing, and are called liars (rightly so). ...Some "civilian" creationists (as I like to call them) don't even realize they are creationists or label themselves as such. ...I don't believe that "civilian" creationists are liars, because they truly don't know any better. They are "inadvertent liars."
Yeah, I get the distinction between "civilians" who know little science and can't be blamed, and "generals" who know some science, cherry-pick data, ignore contrary evidence, and make stuff up. I get that. Of course I have "civilians" in my family, close to me. I was indirectly informed I am no longer godfather to my niece and nephew. But it's the "generals" I don't understand. They know they're making stuff up. Would it kill Duane Gish to admit the bullfrog protein didn't exist? *Why* did William Dembski lie about the probabilities he calculated in "No Free Lunch"? What are they so scared of? I mean, they all worship the Bible, literally. Like it's so great, you have to worship it, twist facts if you have to to defend it, lie, whatever. What's the appeal? Is the Bible that great? Right now I'm involved in a back-and-forth argument with a creationist blogger about whether rape and sex slavery are sanctioned in the Bible. Oh, they say they believe in a literal interpretation, but heaven forbid you should point out the literal descriptions of genocide, rape, infanticide, and slavery. Then they'll fight tooth and nail. So what motivates this visceral desire to defend Biblical literalism? Two theories: A. Is it just moral terror? The fear that without God giving us his word in book form, the rational thing to do would be to go about a-killing and a-raping? B. Is the observation that there are people different from myself-- who listen to music I don't like, vote for politicians I don't like, dress in ways that I don't like-- and there must be a cause for all this-- that they don't share my religious beliefs? So if I convert everybody to my religion, no longer will there be human behaviors I can't figure out, because they'll all act like me.
Christianity is an evolving meme which speciates to occupy every niche available to it in human minds. Since it doesn't have to have even a tenuous connection to reality, the only limit to the form it can take is whether or not there is anyone willing to believe it. Thus it is inevitable that sects based on biblical literalism are going to exist, and since it is absolute "truth" people will go to any lengths to defend it.

snaxalotl · 12 May 2010

it's understood that the civilians lie inadvertently; they don't know what's true and they aren't exactly encouraged to develop the thinking skills to work it out.

in the case of people who should know better, it's noteworthy that lying carries different moral values for the two sides in this case. it was previously mentioned that creationist belief is top down. in a bottom up system, true statements are links in a theoretical structure, and a mistaken fact poisons the whole structure and the conclusions. so in the science world,it's rather disgraceful to risk being mistaken. but in the top down world, a wrong claim might still be performing the honorable function of convincing people of the truth. a trial and error approach is ok because you're searching for anything that sticks ... it's the (moral) responsibility of the "complainers" to cut away arguments that don't work.

hoary puccoon · 12 May 2010

I don't think the human-bullfrog thing started out as a lie. I think there really was a very early study where bullfrog DNA was contaminated by DNA from one of the research team. But the scientists corrected the mistake at least a quarter of a century ago.

Somehow the creationists can convince themselves they're not "really" lying if they quote something a biologist or paleontologist said once--no matter how far the statement is from current scientific thought.

raven · 12 May 2010

Genome Res. 2007 Oct;17(10):1420-30. Epub 2007 Sep 4. Biased clustered substitutions in the human genome: the footprints of male-driven biased gene conversion. Dreszer TR, Wall GD, Haussler D, Pollard KS. Department of Biomolecular Engineering, University of California, Santa Cruz, California 95064, USA. Abstract We examined fixed substitutions in the human lineage since divergence from the common ancestor with the chimpanzee, and determined what fraction are AT to GC (weak-to-strong). Substitutions that are densely clustered on the chromosomes show a remarkable excess of weak-to-strong "biased" substitutions. These unexpected biased clustered substitutions (UBCS) are common near the telomeres of all autosomes but not the sex chromosomes. Regions of extreme bias are enriched for genes. Human and chimp orthologous regions show a striking similarity in the shape and magnitude of their respective UBCS maps, suggesting a relatively stable force leads to clustered bias. The strong and stable signal near telomeres may have participated in the evolution of isochores. One exception to the UBCS pattern found in all autosomes is chromosome 2, which shows a UBCS peak midchromosome, mapping to the fusion site of two ancestral chromosomes. This provides evidence that the fusion occurred as recently as 740,000 years ago and no more than approximately 3 million years ago. No biased clustering was found in SNPs, suggesting that clusters of biased substitutions are selected from mutations. UBCS is strongly correlated with male (and not female) recombination rates, which explains the lack of UBCS signal on chromosome X. These observations support the hypothesis that biased gene conversion (BGC), specifically in the male germline, played a significant role in the evolution of the human genome.
It should be possible to estimate when the human chromosome 2 fusion occurred. A knowledge of mutation rates in noncoding freely evolving DNA and the sequences of chimps and humans should be enough. One estimate is above, 740 to 3,000 kyears. Neanderthals are thought to have split from us at most 400 kyears ago. Science fiction books might not be all that useful for obtaining scientific information.

Robert Byers · 14 May 2010

hoary puccoon said: As was demonstrated by a poster above, another creationist mantra is that science is continually changing its conclusions, therefore none of it is right. The ability to adapt to new evidence is, of course, the basis and great strength of science. But in this case, as in many others, the amount that science actually changed its conclusions is largely in the minds of newspaper headline writers. Everyone working in the field seemed to be aware that the lack of Neanderthal genes in modern human mitochondria didn't necessarily mean there were no Neanderthal genes in modern human nuclear DNA. So this study wasn't so much correcting an error as refining a somewhat fuzzy picture.
I think you mean me. No. Not science is wrong. Science is susposed to be a more prestiges level of conclusions means of a higher lever of process before conclusions are announced. This case shows how origin subjects are not science ones. They change conclusions easily with new data making previous conclusions "science' questionable. Adapting to new evidence should not be happening in science like this. Theories are too be well supported. Einstein didn't add new info to Newton but rather a greater conclusion was drawn with new data. Its different. As for the claim this is not a correction well its presented as new from previous ideas. Seems like a correction. I don't know what the textbooks of last year say.

Robert Byers · 14 May 2010

eric said:
djlactin said: My point was that European caucasians (excluding caucasians currently living in India, who have been selected for darker skin -- carcinomas and such) are starkly different from, shall I say, "typical" humans.
Here's one possible explanation for it. Short summary: the Atlantic gulf stream makes it possible to grow grains in high European latitudes. This is a great benefit in terms of food availability, but a grain-based diet does not provide much vitamin D, so paler skin becomes more of an advantage. Without the gulf stream, no grain. Without the grain, scandinavians etc...would probably have the skin tone of inuit. Or so the web site says. Its not a peer-reviewed publication but sounds like a reasonable hypothesis to me.
There is no need for gulf streams. Simply lack of pigmentation is from a need to deal with a original and still cloudy world there in Europe. The more cloudy the the less pigmentation in skin, hair, eyes, An example is the most extreme redheaded people. They are redhead for the same reason they have red spots and very white/non tanning skin. The pigmentation is so rejected by the body it must squeeze every bit into spots/hair. Likewise redheaded people have the least hair count of Europeans and the men often don't need to shave much in a week. of coarse simply the body doesn't need hair in the way of the sun rays poking through the clouds. Its all about the sun.

Dave Luckett · 14 May 2010

Here it is the wee small hours of the morning over most of Canada, and here's Byers, regurgitating nonsense again. Do the voices in his head keep him awake, or something?

John Kwok · 14 May 2010

Just ignore him, Dave. He's simply craving for attention. One wonders how he can perform adequately as a dedicated civil servant on behalf of his Canadian province:
Dave Luckett said: Here it is the wee small hours of the morning over most of Canada, and here's Byers, regurgitating nonsense again. Do the voices in his head keep him awake, or something?