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The rhesus macaque (Macaca mulatta), colloquially rhesus monkey, is a species of Old World monkey. There are between six and nine recognised subspecies split between two groups, the Chinese-derived and the Indian-derived.
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] Females can range from a weight of 2.4 to 13 kg (5.3 to 28.7 lb).
3d model of skeleton juvenile M. s. sinica. The toque macaque (/ t ɒ k m ə ˈ k æ k /; Macaca sinica) is a reddish-brown-coloured Old World monkey endemic to Sri Lanka, where it is known as the rilewa or rilawa (Sinhala: රිළවා), (hence the English word "rillow").
Female northern pig-tailed macaque in Khao Yai. Physical characteristics identifiers in distinguishing the northern and the southern pig-tailed macaques. [10] Northern pig-tailed macaques have a round greyish pelage from the side of their cheeks all the way around to the top of their head and beneath their chin, which is called a crown. [10]
The Formosan rock macaque (Macaca cyclopis), also known as the Formosan rock monkey or Taiwanese macaque, is a macaque endemic to the island of Taiwan, which has also been introduced to Japan. Besides humans, Formosan rock macaques are the only native primates living in Taiwan. The species was first described by Robert Swinhoe in 1862.
The mantled guereza is in the Colobinae subfamily, also known as the leaf-eating monkeys, a group of Old World monkeys from Asia and Africa. This subfamily is split into three groups, the colobus monkeys of Africa, of which the mantled guereza is a part, the langurs, or leaf monkeys, of Asia, and an "odd-nosed" group.
The capuchin monkeys (/ ˈ k æ p j ʊ (t) ʃ ɪ n /) are New World monkeys of the subfamily Cebinae. They are readily identified as the "organ grinder" monkey, and have been used in many movies and television shows. The range of capuchin monkeys includes some tropical forests in Central America and South America as far south as northern Argentina.
The brain of an adult mantled howler is about 55.1 g (1 + 15 ⁄ 16 oz), which is smaller than that of several smaller monkey species, such as the white-headed capuchin. [ 9 ] [ 11 ] The mantled howler shares several adaptations with other species of howler monkey that allow it to pursue a folivorous diet, that is, a diet with a large component ...