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Gray langurs or Hanuman langurs, the most widespread langurs of South Asia, are a group of Old World monkeys constituting the entirety of the genus Semnopithecus.
Gray langurs are large and fairly terrestrial, inhabiting forest, open lightly wooded habitats, and urban areas on the Indian subcontinent. Most species are found at low to moderate altitudes, but the Nepal gray langur and Kashmir gray langur occur up to 4,000 metres (13,000 ft) in the Himalayas.[SUP][5][/SUP][SUP][6]
[/SUP]Characteristics
These langurs are largely gray (some more yellowish), with a black face and ears. Externally, the various species mainly differ in the darkness of the hands and feet, the overall color and the presence or absence of a crest.[SUP][2][/SUP][SUP][3][/SUP] There are also significant variations in the size depending on the sex, with the male always larger than the female. The head-and-body length is from 51 to 79 cm (20 to 31 in). Their tails, at 69 to 102 cm (27 to 40 in) are always longer than their bodies.[SUP][7][/SUP] Langurs from the southern part of their range are smaller than those from the north. At 26.5 kg (58 lb), the heaviest langur ever recorded was a male Nepal gray langur.[SUP][3][/SUP] The larger gray langurs are rivals for the largest species of monkey found in Asia. The average weight of gray langurs is 18 kg (40 lb) in the males and 11 kg (24 lb) in the females.[SUP][7][/SUP]
Langurs mostly walk quadrupedally and spend half their time on and the ground and the other half in the trees. They will also make bipedal hops, climbing and descending supports with the body upright, and leaps. Langurs can leap 3.7–4.6 m (12.0–15.0 ft) horizontally and 10.7–12.2 m (35–40 ft) in descending.[SUP][8][/SUP]
Among the seven species of Semnopithecus recognized in Mammal Species of the World are:[SUP][1][/SUP]
They use different sounds for different situations.
Vocalizations
Gray langurs are recorded to make a number of vocalizations.[SUP][42][/SUP][SUP][43][/SUP]
Gray langur - Wikipedia, the free encyclopedia
Gray langurs are large and fairly terrestrial, inhabiting forest, open lightly wooded habitats, and urban areas on the Indian subcontinent. Most species are found at low to moderate altitudes, but the Nepal gray langur and Kashmir gray langur occur up to 4,000 metres (13,000 ft) in the Himalayas.[SUP][5][/SUP][SUP][6]
[/SUP]Characteristics
These langurs are largely gray (some more yellowish), with a black face and ears. Externally, the various species mainly differ in the darkness of the hands and feet, the overall color and the presence or absence of a crest.[SUP][2][/SUP][SUP][3][/SUP] There are also significant variations in the size depending on the sex, with the male always larger than the female. The head-and-body length is from 51 to 79 cm (20 to 31 in). Their tails, at 69 to 102 cm (27 to 40 in) are always longer than their bodies.[SUP][7][/SUP] Langurs from the southern part of their range are smaller than those from the north. At 26.5 kg (58 lb), the heaviest langur ever recorded was a male Nepal gray langur.[SUP][3][/SUP] The larger gray langurs are rivals for the largest species of monkey found in Asia. The average weight of gray langurs is 18 kg (40 lb) in the males and 11 kg (24 lb) in the females.[SUP][7][/SUP]
Langurs mostly walk quadrupedally and spend half their time on and the ground and the other half in the trees. They will also make bipedal hops, climbing and descending supports with the body upright, and leaps. Langurs can leap 3.7–4.6 m (12.0–15.0 ft) horizontally and 10.7–12.2 m (35–40 ft) in descending.[SUP][8][/SUP]
Among the seven species of Semnopithecus recognized in Mammal Species of the World are:[SUP][1][/SUP]
- Tufted gray langur Semnopithecus priam [is found in south east india and Sri-lanka]
They use different sounds for different situations.
Vocalizations
Gray langurs are recorded to make a number of vocalizations.[SUP][42][/SUP][SUP][43][/SUP]
- loud calls or whoops made only by adult males during displays;
- harsh barks made by adult and subadult males when surprised by a predator;
- cough barks made by adults and subadults during group movements;
- grunt barks made mostly by adult males during group movements and agonistic interactions;
- rumble screams made in agonistic interactions;
- pant barks made with loud calls when groups are interacting;
- grunts made in many different situations, usually in agonistic ones;
- honks made by adult males when groups are interacting
- rumbles made during approaches, embraces, and mounts;
- hiccups made by most members of a group when they find another group.
Gray langur - Wikipedia, the free encyclopedia