Rhesus macaque Rhesus macaque The rhesus macaque ("Macaca mulatta") is one of the best-known species of Old World monkeys. It is listed as Least Concern in the IUCN Red List of Threatened Species in view of its wide distribution, presumed large population, and its tolerance of a broad range of habitats. Native to South, Central, and Southeast Asia, rhesus macaque have the widest geographic ranges of any nonhuman primate, occupying a great diversity of altitudes and a great variety of habitats, from grasslands to arid and forested areas, but also close to human settlements. The rhesus macaque is brown or grey in
White-cheeked macaque the animals caught on tape (including more prominent whiskers, thicker neck hair, and differences in the shape of the genitalia), primatologists in China declared them to be a new species. Their research, along with a series of photographs of the species, was published in the July 2015 issue of the "American Journal of Primatology". In April 2016, a group of wildlife photographers and biologists spotted and photographed the white-cheeked macaque in Arunachal Pradesh, India. Prior to this sighting, the species was thought to exist only in Tibet. Physiologically, the white-cheeked macaque is similar to the other members of the genus