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. Excavations at Olduvai
Gorge by Louis and Mary Leakey in the mid-1950s helped to establish
the African origin of humanity.
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