Chimpanzees (Pan troglodytes). Chimpanzee siblings hugging each other. The chimpanzees natural habitat is the forest and forest edges of central and western Africa. It is social, living in large communities that may contain dozens of individuals arranged in loose family groups. The chimp is highly communicative, using a wide range of facial expressions, vocalisations and gestures. It feeds on a variety of foods including both plants and animals. It is thought that humans and chimps had a common ancestor as little as 5 million years ago.