"..All three studies support the idea that modern human beings left East Africa, walked into Central Asia and then fanned out east and west to people the entire planet. The studies also confirm earlier research showing that as a group, Africans have more diverse genes than people of other continents. But the new research further shows that genetic diversity declines steadily the farther one's ancestors traveled from Addis Ababa, Ethiopia, which is roughly the site of the exit turnstile for the "out-of-Africa" migration."
"What this says is that we are all extremely related to each other," said Richard M. Myers, a geneticist at Stanford University School of Medicine, who helped lead one of the studies being published today in the journal Science.
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