Snub-nosed monkey
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Snub-nosed monkeys are a group of Old World monkeys and make up the entirety of the genus Rhinopithecus. The genus is rare and not fully researched. Some taxonomists group snub-nosed monkeys together with the genus Pygathrix.
Distribution and habitat
Snub-nosed monkeys live in Asia, with a range covering southern China (especially Tibet, Sichuan, Yunnan, and Guizhou) extending into the northern parts of Myanmar and Vietnam. Snub-nosed monkeys inhabit mountain forests up to elevations of more than Template:Cvt. In the winter, they move into the deeply secluded regions. Higher elevation areas are more remote and difficult for humans to access and utilize and other studies have found less deforestation, more reforestation and afforestation, less range contraction, and less extinction in topographically steep areas. All Rhinopithecus species inhabit primary forest and grid cells with tree cover ≥ 75% might constitute important potential habitat.[1]
Description
These monkeys are named for the short stump of a nose on their round faces, with nostrils arranged forward. They have relatively multicolored and long fur, particularly at the shoulders and backs. They grow to a length of Template:Cvt with a tail of Template:Cvt.
Behavior
Snub-nosed monkeys spend the majority of their life in the trees. They live together in very large groups, splitting up into smaller groups in times of food-scarcity, such as in the winter. Family units consisting of one male with multiple females, along with all-male bachelor groups, form cohesive larger groups of roughly 76 to 400.[2][3] They have territorial instincts, defending their zones mostly with shouts. They have a large vocal repertoire, calling sometimes solo while at other times together in choir-like fashion.
The monkeys are known to be difficult to track because they are so quiet. Reachers have noted that it's easier to find them when it's raining because water gets into their nostrils and makes them sneeze.[4]
Diet
The diet of these animals consists mainly of tree needles, bamboo buds, fruits and leaves. A multi-chambered stomach helps them with digesting their food.
Breeding
The impulse for mating starts with the female. She takes up eye contact with the male and runs away a short bit, then flashes her genitals. If the male shows interest (he does not always), he joins the female and they mate. The 200-day gestation period ends with a single birth in late spring or early summer. Young animals become fully mature in about six to seven years. Zoologists know little about their lifespan.
Conservation
The golden[5] and black-and-white snub-nosed monkeys[6] are both endangered species, while the other three species are critically endangered.[7][8][9]
Golden snub-nosed monkey communities with large populations have high genetic diversity, but also show higher levels of recent inbreeding than other snub-nosed monkeys.[10]
Species
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Documentary films
- Mystery Monkeys of Shangri-La, PBS "Nature", April 29, 2015[11]
- Born In China
See also
References
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- ↑ Grueter, CC, 2009, Determinents of modular societies in snub-nosed monkeys and other Asian columbines. Dissertation, University of Zurich, Switzerland, https://www.zora.uzh.ch/id/eprint/95938/
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External links
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