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Ancient Greenland Man was from Eastern Siberia

Nicholas Wade writes in The New York Times that DNA from hair found in Greenland has been sequenced.  The hair was apparently cut from the head of a Greenland resident about 4,000 years ago.  The man was not related to the older residents of northern North America, the Inuit, but was a Saqqaq, a Paleo-Eskimo culture related to the Nganasans, Koryaks and Chukchis from the eastern tip of Siberia and the modern natives on both sides of the Bering Sea.

Saqqaqs, considered to be extinct, have not been found across Canada and Alaska, so the migration, which was believed to have taken place about 5,500 years ago, was completed from Siberia to Greenland without leaving behind any modern descendants or other archeological evidence yet found, other than tools.  The lack of recovered physical remains is believed possibly due to "burial" having been performed by placing the deceased on sea ice flows.

Read the Wade article and an article in Nature for more details.

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