The Nigeria-Cameroon chimpanzee (Pan troglodytes ellioti ) is a subspecies of the common chimpanzee which inhabits the rainforest along the border of Nigeria and Cameroon. Male Nigeria-Cameroon chimpanzees can weigh up to 70 kilos with a body length of up to 1.2 metres and a height of 1.3 metres. Females are significantly smaller. Like the nominate subspecies, the Nigeria-Cameroon chimpanzee has been classified as Endangered by the IUCN, indicating a high risk of extinction in the near future.
Nigeria-Cameroon chimpanzees weigh around 80 kg for adult males in captivity and 65 kg for adult females in captivity. They stand 1–1.7 m tall when erect.
The subspecies inhabits tropical rain forests and montane forests at elevations of up to 2,750 m above sea level. There are also populations that primarily inhabit savanna habitats.
The Nigeria-Cameroon chimpanzee is recognised as the most threatened and least widely distributed of all the common chimpanzee subspecies, facing a high likelihood of extinction in the coming decades.
