Friday, August 27, 2010
Shelter Competition, Caveman, Giant Cave Bear Extinction | Megafauna, Humanity-Caused Extinction | LiveScience
Shelter Competition, Caveman, Giant Cave Bear Extinction | Megafauna, Humanity-Caused Extinction | LiveScience: "Giant cave bears thought to have once dined on each other might have been driven to extinction by the advance of humanity, scientists now suggest."
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