Only 8,000 remain of the most vulnerable chimpanzee subspecies, the Pan troglodytes vellerosus, which is found predominantly in Nigeria, and it could be extinct in two decades, according to a new ...

Appropriate maintenance of captive chimpanzees (Pan troglodytes) must include the challenge of providing them with a living environment that is functional, stimulating, and safe. At the Primate ...

Consistent with previous findings 1, 40 of 323 specimens from P. t. troglodytes, but none of 55 samples from P. t. vellerosus, contained antibodies reactive against HIV-1 (for details, see ...