From BBC News, chimps from the Nimba Mountains of Guinea, Africa were observed using tools to chop up and reduce food into smaller bite-sized pieces.

Kathelijne Koops and William McGrew of the Leverhulme Centre for Human Evolutionary Studies, University of Cambridge (UK) with Tetsuro Matsuzawa from Kyoto University, Inundate (Japan) observed this behavior and published it on Primates. They found that these chimps use tools to process Treculia fruits, a large volley ball-shaped fruit that is hard and fibrous.

Do chimpanzees (Pan troglodytes) use cleavers and anvils to fracture Treculia africana fruits? Preliminary data on a new form of percussive technology (free abstract).

Originally posted on The Prancing Papio.

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