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Black-and-white colobuses (or colobi) are Old World monkeys of the genus Colobus, native to Africa. They are closely related to the red colobus monkeys of genus Piliocolobus. [ 1] There are five species of this monkey, and at least eight subspecies. [ 1] They are generally found in high-density forests where they forage on leaves, flowers and ...
The black-and-white snub-nosed monkey ( Rhinopithecus bieti ), [ 3][ 4] also known as the Yunnan snub-nosed monkey, [ 5] is a large black and white primate that lives only in the southern Chinese province of Yunnan, [ 6] where it is known to the locals as the Yunnan golden hair monkey ( Chinese: 滇金丝猴) and the black-and-white snub-nosed ...
Purple-faced langur. The purple-faced langur ( Semnopithecus vetulus ), [ 1] also known as the purple-faced leaf monkey, is a species of Old World monkey that is endemic to Sri Lanka. The animal is a long-tailed arboreal species, identified by a mostly brown appearance, dark face (with paler lower face) and a very shy nature.
The mantled guereza ( Colobus guereza ), also known simply as the guereza, the eastern black-and-white colobus, or the Abyssinian black-and-white colobus, is a black-and-white colobus, a type of Old World monkey. It is native to much of west central and east Africa, including Cameroon, Equatorial Guinea, Nigeria, Ethiopia, Kenya, Tanzania ...
The pit of despair was a name used by American comparative psychologist Harry Harlow for a device he designed, technically called a vertical chamber apparatus, that he used in experiments on rhesus macaque monkeys at the University of Wisconsin–Madison in the 1970s. [2] The aim of the research was to produce an animal model of depression.
François' langur (Trachypithecus francoisi), also known as Francois' leaf monkey, the Tonkin leaf monkey, or the white side-burned black langur [3] is a species of Old World monkey and the type species of its species group. It is one of the least studied of the species belonging to the Colobinae subfamily. [4]
The black-headed uakari is found north of the Amazon and south of the Rio Negro. The Neblina uakari is found north of the Rio Negro, west of the Rio Marauiá and east of the Casiquiare canal. The Aracá uakari is currently known only from the Rio Curuduri basin. They have been observed both in small groups and in larger troops of up to 100.
The East Javan langur ( Trachypithecus auratus ), also known as the ebony lutung, Javan langur or Javan lutung, is an Old World monkey from the Colobinae subfamily. It is most commonly glossy black with a brownish tinge to its legs, sides, and "sideburns". [ 3] It is found on the island of Java, as well as on several of the surrounding ...