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Maroc Maroc - WN.COM - Science - 14/May 03:58

Ancient tooth proteins rewrite human evolution story

BEIJING, May 13 (Xinhua) -- Proteins extracted from six teeth of early humans residing in what is now China around 400,000 years ago provide new insights into how ancient genetic material may have made its way into modern humans. An analysis of the tooth proteins from Homo erectus, the first human ancestor to walk out of Africa, was reported this week in the journal Nature. It identifies a genetic marker also found in Denisovans, a little-known early human group first found in a Siberian cave, and in some modern human populations today, suggesting the two ancient populations may have coexisted and interacted in parts of East Asia. The findings were made possible by a nearly non-destructive...

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