Oldest Spear Points Date to 500,000 Years

A collaborative study involving researchers at Arizona State University, the University of Toronto, and the University of Cape Town found that human ancestors were making stone-tipped weapons 500,000 years ago at the South African archaeological site of Kathu Pan 1 - 200,000 years earlier than previously thought. This study, "Evidence for Early Hafted Hunting Technology," is published in the Nov. 16 issue of the journal Science.

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