Gene study supports single main migration across Bering Strait

Did a relatively small number of people from Siberia who trekked across a Bering Strait land bridge some 12,000 years ago give rise to the native peoples of North and South America?

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<p><a href="http://www.physorg.com/news115320499.html">Gene study supports single main migration across Bering Strait</a></p> <p>Did a relatively small number of people from Siberia who trekked across a Bering Strait land bridge some 12,000 years ago give rise to the native peoples of North and South America?</p>