Topic ID #21449 - posted 7/12/2012 2:56 PM

Native Americans arrived in at least three waves, finds DNA study



Jennifer Palmer

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Native Americans arrived in at least three waves, finds DNA study
A genetic study of Native Americans from Greenland to Peru has found that the Western Hemisphere was populated by at least three distinct migrations from Asia.

By Eryn Brown, Los Angeles Times/MCT / July 12, 2012

Supporting a controversial view of how humans might have populated the Western Hemisphere, geneticists have found that groups from Asia traveled over the Bering Strait into North America in at least three separate migrations beginning more than 15,000 years ago — not in a single wave, as has been widely thought.

“We have various lines of evidence that there was more than one migration,” said Dr. Andres Ruiz-Linares, a professor of human genetics at University College London and senior author of a report on the findings that was published Wednesday by the journal Nature.

The discovery was made possible by the sheer volume of genetic material the team was able to assemble and analyze, he said.


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