"Hominids may have been cutting-edge tool makers..." Topic
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Tango01  | 09 Dec 2019 4:08 p.m. PST |
… 2.6 million years ago. "Discoveries in East Africa of what may be the oldest expertly sharpened stone implements suggest that early members of the human genus, Homo, invented these tools by around 2.6 million years ago, researchers say. But their conclusions are controversial. New finds at a site in Ethiopia called Ledi-Geraru fit a scenario in which various early Homo groups devised ways to sharpen handheld stones, assert archaeologist David Braun of George Washington University in Washington, D.C., and his colleagues. Ledi-Geraru artifacts date to between 2.58 million and 2.61 million years ago, the team reports online June 3 in the Proceedings of the National Academy of Sciences…"
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