Study suggest local East African climate variability contributed to human evolution

(Phys.org) —Susanne Shultz and Mark Maslin of Britain's University of Manchester and University College respectively have published a paper in the journal PLOS ONE, outlining what they call a pulsed climate variability hypothesis. They suggest that early man developed a huge brain to deal with the constantly changing environment of the Great Rift Valley in Eastern Africa, during the formative years of human evolution.

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