Percussive technology in wild chimpanzees ( Pan troglodytes ) shows significant behavioral variation across Africa. An example is baobab ( Adansonia digitata ) fruit pounding, which is only known to occur in the Bandafassi Arrondissement in the Kedougou region (Senegal) and in the Bafing area (Mali). The extent to which this proto-tool use behavior varies between populations is poorly understood. Here, we present a preliminary...