Erratic Environment May Be Key to Human Evolution

Posted by LiveScience: Charles Choi on December 26th, 2012
LiveScience: At Olduvai Gorge, where excavations helped to confirm Africa was the cradle of humanity, scientists now find the landscape once fluctuated rapidly, likely guiding early human evolution.These findings suggest that key mental developments within the human lineage may have been linked with a highly variable environment, researchers added. Olduvai Gorge is a ravine cut into the eastern margin of the Serengeti Plain in northern Tanzania that holds fossils of hominins -- members of the human lineage.......

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