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Man's Best Friend was a Late Arrival in the Americas

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Man's Best Friend was a Late Arrival in the Americas

2015-01-14 16:52:28

Man's best friend was a late arrival in the Americas

Researchers say that dogs may have arrived in the Americas only about 10,000 years ago, thousands of years after humans first did. This finding might shed light on patterns of human migration into the New World, scientists added. In the study, the researchers looked at DNA from 42 new samples taken from ancient dog remains and compared that DNA with 42 other genetic samples from prior studies. The scientists discovered four never-before-seen genetic signatures in the new samples, suggesting there was greater diversity among the ancient dogs in the Americas than previously thought. Study co-author Ripan Malhi, of the University of Illinois at Urbana-Champaign, said in a statement that the most surprising finding was that that dogs may have arrived in the Americas only about 10,000 years ago. Malhi said this date "is about the same time as the oldest dog burial found in the Americas." And "This may not be a coincidence." The new finding suggests that dogs came to the Americas with a second wave of human migration, thousands of years after people first traveled to the Americas from Asia.

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