All but one of the 27 tools were made from elephant or hippo bone. Hippos were common in the area but elephants were not, ...

The bone tools were created the same way tools were made from stone.

They also seemed to plan how to use them in advance. Eight of the tools came from elephant bones, and yet the researchers found no trace of an elephant carcass. Dr. de la Torre said it was likely ...

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All but one of the 27 tools were made from elephant or hippo bone. Hippos were common in the area but elephants were not, meaning their bones were probably carried to Olduvai Gorge from elsewhere ...

A bone tool made from a 1.5-million-year-old elephant bone discovered at the Olduvai Gorge site in Tanzania is seen in this picture released on March 5, 2025. Photo: Pleistocene Archaeology ...