beringia

NEWS via NBCNews: First Americans May Have Been Stuck in Beringia for Millennia

March 6, 2014 // 0 Comments

First Americans May Have Been Stuck in Beringia for Millennia BY ALAN BOYLE WILLIAM MANLEY / IAAR / UNIV. OF COLO. This map shows the outlines of modern Siberia (left) and Alaska (right) with dashed lines. The broader area in a darker shade of green, which is now covered by ocean, represents the Bering land bridge as it existed about 18,000 years ago. Anthropologists say that the ancestors of Native Americans started making their way from Siberia to the Americas 25,000 years ago over a land bridge that once spanned the Bering Sea — but there are gaps in that story: Why didn’t those migrants leave behind any archaeological traces until 10,000 years later? Now scientists are homing in on an explanation: During all those millennia, the first Americans were isolated on the land bridge itself. When the land bridge vanished, so did the evidence of that Beringian culture. The “Beringian Standstill” hypothesis was first proposed by Latin American geneticists in 1997, as a [...]
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