A set of half-a-million-year-old stone tools -- including what's being called a prehistoric "swiss army knife" -- have scientists going gaga.
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By: Owen Jarus, LiveScience Contributor
Published: 12/31/2012 02:15 PM EST on LiveScience
"Peking Man," a human ancestor who lived in China between...
By: Charles Choi, LiveScience Contributor
Published: 11/07/2012 01:19 PM EST on LiveScience
Rocks carved into ancient stone arrowheads or into let...
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