Chimps live in complex social communities varying from 20 to 100 members. They are opportunistic omnivores, eating over 300 items including fruit, vegetation, eggs, insects and mammals up to the size of a bush pig. They use a variety of tools to obtain these foods, such as stone ‘hammers’ to crack nuts, and appear to use certain plants medicinally to expel diseases and endoparasites. Standing at around 1-1.2m tall, they can swing between branches but use knuckle walking to move any significant distances.
