Wildlife secrets of Nigeria's last wilderness

The world's rarest chimpanzee has been captured on camera in the remote forests of Nigeria.

The Nigeria-Cameroon chimp was seen at various locations within Gashaka Gumti National Park, raising hopes for its future survival. Conservationists also recorded the first sighting in the country of a giant pangolin.

The park is regarded as a national treasure, but its wildlife is under threat from pressures such as poaching.