Human Evolution: Oldest Evidence Of Stone Tool Use

California Academy of Sciences: Human Evolution -- Tool use by early humans started much earlier. The Academy's Zeray Alemseged reveals his latest discovery: human stone tool use dating back to 3.4 million years ago. Small-brained human ancestors used stone tools to whack into large mammals some 800,000 years earlier than previously thought.

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Posted by Quincy Maxwell on July 20, 2014 at 9:37pm 24 Comments

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