WASHINGTON (AP) — Early humans were regularly using animal bones to make cutting tools 1.5 million years ago.
A newly discovered cache of 27 carved and sharpened bones from elephants and hippos found in Tanzania’s Olduvai Gorge site pushes back the date for ancient bone tool use by around 1 million years. Researchers know that early people made simple tools from stones as early as 3.3 million years ago.
The new discovery, published Wednesday in Nature, reveals that ancient humans “had rather more complex tool kits than previously we thought,” incorporating a variety of materials, said William Harcourt-Smith, a paleoanthropologist at the American Museum of Natural History, who was
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