Burnished saki

The burnished saki (Pithecia inusta) is a saki monkey, a type of New World monkey, found throughout much of central Peru, mainly in the Ucayali River watershed, and in a small adjoining part of western Brazil. Johann Baptist von Spix described it in 1823, but it was later merged with the monk saki. A 2014 study revived it as a distinct species because of differences in the coloration of juveniles, whose faces differ from the two-toned brown and white faces of the monk saki: young males have closely pressed white hairs and young females have gray-black or brownish faces that turn white. Adults have faces covered in burnt tan fur. Logging and poaching are thought to threaten it and its population is thought to be declining, and it is sometimes found in the pet trade, but its wide range keeps it at least concern on the IUCN Red List.