Native American populations descend from three key migrations
Wednesday, July 11, 2012 - 13:50
in Paleontology & Archaeology
Scientists have found that Native American populations -- from Canada to the southern tip of Chile -- arose from at least three migrations, with the majority descended entirely from a single group of First American migrants that crossed over through Beringia, a land bridge between Asia and America that existed during the ice ages, more than 15,000 years ago.