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I found this to be interesting:
And this to be a bit of a surprise:NEW YORK (AP) -- Nearly all of today's Native Americans in North, Central and South America can trace part of their ancestry to six women who lived around 20,000 years ago, a DNA study suggests.
Those women left a particular DNA legacy that persists today in about about 95 percent of Native Americans, researchers said.
The finding does not mean that only these six women gave rise to the migrants who crossed into North America from Asia in the initial populating of the continent, said study co-author Ugo Perego.
The women lived between 18,000 and 21,000 years ago, though not necessarily at exactly the same time, he said.
http://www.cnn.com/2008/TECH/science/03/13/native.dna.ap/index.html [Broken]The six "founding mothers" apparently did not live in Asia because the DNA signatures they left behind aren't found there, Perego said. They probably lived in Beringia, the now-submerged land bridge that stretched to North America, he said.
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