The genus Pan is composed of two species: Pan paniscus (the bonobo) and Pan troglodytes (the common chimpanzee). Chimpanzees were once widespread across much of Africa but are now concentrated in the forests and savannas around the equatorial belt. Chimpanzees live in a tropical habitat using a wide variety of habitats, from deep forest to open mixed forest-savanna, from lowlands to relatively high altitudes. They are threatened by habitat destruction and hunting. Common chimpanzees are ‘Endangered’ under a strict application of the IUCN Red List Criteria and are listed in Appendix 1 of CITES.