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Post by Deleted on Nov 19, 2013 12:44:56 GMT -8
New genome sequences from two extinct human relatives suggest that these ‘archaic’ groups bred with humans and with each other more extensively than was previously known. The ancient genomes, one from a Neanderthal and one from a different archaic human group, the Denisovans, were presented on 18 November at a meeting at the Royal Society in London. They suggest that interbreeding went on between the members of several ancient human-like groups living in Europe and Asia more than 30,000 years ago, including an as-yet unknown human ancestor from Asia. “What it begins to suggest is that we’re looking at a ‘Lord of the Rings’-type world — that there were many hominid populations,” says Mark Thomas, an evolutionary geneticist at University College London who was at the meeting but was not involved in the work. The first Neanderthal1 and the Denisovan2 genome sequences revolutionized the study of ancient human history, not least because they showed that these groups interbred with anatomically modern humans, contributing to the genetic diversity of many people alive today. All humans whose ancestry originates outside of Africa owe about 2% of their genome to Neanderthals; and certain populations living in Oceania, such as Papua New Guineans and Australian Aboriginals, got about 4% of their DNA from interbreeding between their ancestors and Denisovans, who are named after the cave in Siberia’s Altai Mountains where they were discovered. The cave contains remains deposited there between 30,000 and 50,000 years ago. The first Neanderthal1 and the Denisovan2 genome sequences revolutionized the study of ancient human history, not least because they showed that these groups interbred with anatomically modern humans, contributing to the genetic diversity of many people alive today. All humans whose ancestry originates outside of Africa owe about 2% of their genome to Neanderthals; and certain populations living in Oceania, such as Papua New Guineans and Australian Aboriginals, got about 4% of their DNA from interbreeding between their ancestors and Denisovans, who are named after the cave in Siberia’s Altai Mountains where they were discovered. The cave contains remains deposited there between 30,000 and 50,000 years ago. Those conclusions however were based on low-quality genome sequences, riddled with errors and full of gaps, David Reich, an evolutionary geneticist at Harvard Medical School in Boston, Massachusetts said at the meeting. His team, in collaboration with Svante Pääbo at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, have now produced much more complete versions of the Denisovan and Neanderthal genomes — matching the quality of contemporary human genomes. The high-quality Denisovan genome data and new Neanderthal genome both come from bones recovered from Denisova Cave. The new Denisovan genome indicates that this enigmatic population got around: Reich said at the meeting that they interbred with Neanderthals and with the ancestors of human populations that now live in China and other parts of East Asia, in addition to Oceanic populations, as his team previously reported. Most surprisingly, Reich said, the new genomes indicate that Denisovans interbred with another extinct population of archaic humans that lived in Asia more than 30,000 years ago, which is neither human nor Neanderthal. The meeting was abuzz with conjecture about the identity of this potentially new population of humans. “We don’t have the faintest idea,” says Chris Stringer, a paleoanthropologist at the London Natural History Museum, who was not involved in the work. He speculates that the population could be related to Homo heidelbergensis, a species that left Africa around half a million years ago and later gave rise to Neanderthals in Europe. “Perhaps it lived on in Asia as well,” Stringer says.
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Post by Deleted on Nov 20, 2013 1:41:55 GMT -8
What a bunch of drivel.
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Post by Deleted on Nov 20, 2013 1:42:20 GMT -8
Chariots of the Gods part 2.
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Post by Deleted on Nov 20, 2013 1:44:04 GMT -8
But then again there have been subhumans attempting to mate with Americans. I think they are called Canadians.
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Post by Deleted on Nov 20, 2013 1:49:36 GMT -8
A bunch of guys staring at a hole. What is newsworthy about that?
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Post by Deleted on Nov 20, 2013 1:50:49 GMT -8
However it does make sense that some of us such as myself are superior human beings.
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Post by ✿Lexxy✿ on Nov 20, 2013 9:36:07 GMT -8
I think it's fascinating.
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Post by Willing Sniper on Nov 20, 2013 10:16:44 GMT -8
Putting it all together, piece by piece. Scientists say an entirely separate type of human identified from bones in Siberia co-existed and interbred with our own species. The ancient humans have been dubbed Denisovans after the caves in Siberia where their remains were found. There is also evidence that this group was widespread in Eurasia. A study in Nature journal shows that Denisovans co-existed with Neanderthals and interbred with our species – perhaps around 50,000 years ago. An international group of researchers sequenced a complete genome from one of the ancient hominins (human-like creatures), based on nuclear DNA extracted from a finger bone. According to the researchers, this provides confirmation there were at least four distinct types of human in existence when anatomically modern humans (Homo sapiens sapiens) first left their African homeland. For you young earth creationists out there, go ahead and ignore the entire story. It's just more of that ungodly and overrated science stuff trying to mess with your heads.
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Post by ♬ pkbucko ♬ on Nov 20, 2013 10:47:08 GMT -8
Would it be considered wildly racist if the artist's rendition was of Whoopi Goldberg?
just askin
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Post by Deleted on Nov 20, 2013 11:28:01 GMT -8
Would it be considered wildly racist if the artist's rendition was of Whoopi Goldberg? just askin Absolutely. next question....
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Post by ♬ pkbucko ♬ on Nov 20, 2013 11:30:17 GMT -8
Would it be considered wildly racist if the artist's rendition was of Whoopi Goldberg? just askin Absolutely. next question.... Got it. Thanks for clearing that up.
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Post by Deleted on Nov 20, 2013 11:32:58 GMT -8
It just shows you, some guys will tap anything.
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Post by ♬ pkbucko ♬ on Nov 20, 2013 11:36:03 GMT -8
LMFAO
Oh the horror
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