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Climate swings shaped human evolution, researchers claim
News Type: Event — Seeded on Sun Nov 18, 2007 9:42 PM EST
Article Source: Guardian Unlimitedadvertisement
The evolution of our earliest human ancestors was driven by wild swings in eastern Africa's ancient climate, scientists claim today.
The rapidly changing climate reshaped the landscape, leaving once plentiful food and water resources in scarce supply and placing enormous pressure on early humans to adapt.
The sustained upheaval drove some species to the brink of extinction, while other better-suited relatives emerged and flourished, the scientists believe.
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