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One birthplace?

Some scientists think that we all descended from people who lived in Africa, 150-200 thousand years ago - the 'Out-of-Africa' theory. These first modern humans spread around the world, eventually replacing all the other types of humans, according to the theory. Evidence from DNA from living people suggests that present-day humans spread from Northeast Africa to China, then went on to Australia, Europe, the Americas and Polynesia.

Did our ancestors live in Africa 150-200,000 years ago, and then spread around the world?
Did our ancestors live in Africa 150-200,000 years ago, and then spread around the world?

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