AMES, Iowa – It was a discovery that changed what researchers knew about the hunting techniques of chimpanzees. In 2007, Jill Pruetz first reported savanna chimps at her research site in Fongoli, ...
A recent study assessed wild chimpanzees’ use of sticks as a tool, monitoring how chimps of different ages gripped and manipulated the implement to retrieve food from tricky places. The study found ...
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