Article: DNA study backs theory; Africa: It suggests that modern man populated the planet as early as 50,000 years ago

A study comparing the DNA of people around the world has yielded what could be the best evidence yet that modern man first evolved in Africa and scattered to populate the planet as recently as 50,000 years ago.

Such a view suggests that the first Homo sapiens held such dramatic evolutionary advantages - perhaps stronger powers of reasoning - that they replaced other early humans with virtually no interbreeding.

This is not the first time DNA technology has been applied to the question of when and where modern humans emerged. But the researchers said they analyzed the longest strand of DNA ever examined for a human lineage study.

They said their findings strongly favor the "out-of-Africa" ...

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