Scientists rewrite human evolution timeline

July 4, 2014 5:15 AM

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Scientists have synthesized a new theory that the traits that have allowed humans to adapt and thrive in a variety of varying climate conditions evolved in Africa gradually and at separate times.

Many traits unique to humans were long thought to have originated in the genus Homo between 2.4 and 1.8 million years ago in Africa and it was earlier believed that large brain, long legs, the ability to craft tools and prolonged maturation periods have evolved together at the start of the Homo line...

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