Rapid climate change helped humans to evolve

Daily Mail: How rapid climate change helped humans to evolve: Our ancestors 'had to adapt quickly to changing habitats' Findings contradict previous theories which suggest change was gradual Terrain changed from woods to grassland 'five or six times over 200,000 years', researchers claim Rapid changes said to have triggered development of the brain as humans struggled to deal with changing environment Human evolution may have been driven by rapid climate change in Africa two million years ago, new......

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