Tuesday, August 10, 2010

Pets vital to human evolution
[ Tue, 10 Aug 2010 14:14:15 GMT ]

Animal pets, like dogs, may have been vital to human evolution, a new theory suggests. Dogs, cats, cows and other domesticated animals played a key role in human evolution, according to a theory being published by paleoanthropologist Pat Shipman of Penn State University.


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