5/9/2013

By studying DNA sequences, researchers Peter Ralph and Graham Coop have determined that Europeans who live close to one another tend to be more closely related than those who do not. "Europe happens to have a really good genetic sample and really good match of geography to genetic variation," said paleoanthropologist John Hawks, who was not on the research team. "In some other parts of the world, like Africa, things are not so simple."

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