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The most common monkey species found in animal research are the grivet, the rhesus macaque, and the crab-eating macaque, which are either wild-caught or purpose-bred. [ 66 ] [ 67 ] They are used primarily because of their relative ease of handling, their fast reproductive cycle (compared to apes) and their psychological and physical similarity ...
As is the case with all species of spider monkeys, the brown spider monkey is threatened by hunting and habitat loss. Spider monkeys form loose groups, typically with 15 to 25 individuals, [23] but sometimes up to 30 or 40. [24] [25] During the day, groups break up into subgroups. The size of subgroups and the degree to which they avoid each ...
The red-tailed monkey associates with several species, including the western red colobus, blue monkey, Wolf's mona monkey, mantled guereza, black crested mangabey and Allen's swamp monkey. [110] Several of these species are preyed upon by the common chimpanzee. [118] In South America, squirrel monkeys associate with capuchin monkeys. [119]
Night monkeys represent a territorial species, territories are defended by conspecifics through the use of threatening and agonistic behaviours. [19] Ranges between night monkey species often do overlap and result in interspecific aggressions such as vocalizing and chasing which may last up to an hour. [11]
The Cercopithecinae are a subfamily of the Old World monkeys, which comprises roughly 71 species, including the baboons, the macaques, and the vervet monkeys.Most cercopithecine monkeys are limited to sub-Saharan Africa, although the macaques range from the far eastern parts of Asia through northern Africa, as well as on Gibraltar.
In some species, skin folds join the second through fifth toes, almost reaching the first metatarsal joint. [8] The monkey's size differs depending on sex and species. Males from all species can range from 41 to 70 cm (16 to 28 inches) in head and body length, and in weight from 5.5 to 18 kg (12.13 to 39.7 lb). [6]
The 158 extant species of Cercopithecidae are divided into two subfamilies: Cercopithecinae, containing 78 baboon, guenon, macaque, and other monkey species divided between thirteen genera, and Colobinae, containing 80 colobus, lutung, and other monkey species divided between ten genera. Dozens of extinct prehistoric cercopithecoid species have ...
Unlike other New World monkeys, both male and female howler monkeys have trichromatic color vision. [3] This has evolved independently from other New World monkeys due to gene duplication. [4] They have lifespans of 15 to 20 years. Howler species are dimorphic and can also be dichromatic (i.e. Alouatta caraya). Males are typically 1.5 to 2.0 kg ...