Introduction and detailed information of dolphin-tailed monkeys

Appearance characteristics

?The body length of male pig-tailed monkeys is 50-77 cm and the weight is 6-15 kg. The body length of female animals is 40-57 cm and the weight is 6-15 kg. 4-11kg. The whole body is light yellowish brown, with short hairs on the top of the head, radiating into a tan flat-top area, like a hat; most of the hairs on the tail are short and sparse, shaped like a pig's tail. The hair on the side of the face and temples grows obliquely toward the back, and the hair around the ears grows forward, connecting to each other like a band. Dolphin-tailed monkeys distributed in Tibet have darker upper body color, orange-yellow face, dark brown from the back to the tail, red-black neck and back of the head; black top, khaki-red dye on both sides; yellowish-white or grayish-white ventral surface. The top of the head is flat and has a hairy ladle, so it is also called a "flat-top monkey". Dolphin-tailed monkey

The forehead is narrow and the snout is long and thick, slightly like a baboon. The face is long, flesh-colored, with long yellow-brown whiskers. The hair on the cheeks grows obliquely to the back. The hair around the ears grows forward and is connected to each other, like a scarf covering the ears. The eyes have obvious white eyelids. . The crest is short and black, and there are radial hair rolls on the top of the head, but the forehead is radially arranged into a flat-top hat shape, which looks like a "ban-cun" hairstyle, so it is also called a flat-top monkey.

The tail is also very short, about three-tenths of the body length. The hair on the tail is also very sparse. The base of the tail is thicker and the tip is thinner, but there is a tuft of long hair at the end. When moving, it often bends in an "S" shape like a bow, resembling a broom or a pig's tail, hence its name. It is also called a pig-tailed monkey.

The big toe of the dolphin-tailed monkey is similar to that of the general macaque. It is outwardly extended, but it appears to be very large. The reason may be that other macaques like to go to the ground, while the dolphin-tailed monkey mainly inhabits trees. The body is relatively majestic, especially the adult male beast. The body hair is long, soft and shiny, with some spots on the body. The color of the back and tail is dark brown to black, and other parts are light yellow to gray brown. Not only are the female animals smaller in size, but their fur is not as bright as the male animals. Habitat

Inhabits subtropical forests, lives in groups in broad-leaved forests, and often moves on the ground.

Living habits

Dove-tailed monkeys can climb tall trees. He is good at selecting better fruits for food, and often goes to farming areas to steal grains. Dove-tailed monkeys spend more time on the ground than macaques and bear monkeys. When frightened by its movements in trees, it can quickly escape to the ground and rarely jump from the canopy. But sleep is still in the tree. It is a diurnal, arboreal, omnivorous animal. They like to live in groups, with each group consisting of about 3-20 animals. The living habits in the wild are similar to those of macaques. They spend more time on the ground and walk on all fours when walking and running. However, when walking on trees, they are plantigrade. It can live in harmony with the langur group. Like other monkeys, it likes to "catch lice" with each other. In fact, the monkeys are grooming each other. Usually, male monkeys groom male monkeys, and female monkeys groom female monkeys. There are fewer "catching lice" between the sexes. During the breeding season, males and females usually groom each other, which is a sign of intimacy between the partners. Dove-tailed monkeys

Male dove-tailed monkeys are strong and powerful. The old male monkeys raised in the zoo have a more ferocious temperament, while the female monkeys and young monkeys have a docile temperament. They like to live in groups, and they also have a very powerful ability, that is, they can pick thousands of coconuts a day and climb trees very quickly. In Thailand, pig-tailed monkeys are trained to pick coconuts. Geographical distribution

Distributed in Vietnam, Laos, Khmer, Thailand, Myanmar, Malaysia, Sumatra, Kalimantan and Assam in eastern India.

China is distributed in Menyu and Luoyu areas of Tibet, Xishuangbanna (Mengla, Menglun, Menghai), Simao area (Jinggu and Jingdong) of southern Yunnan and Lincang area of ??southwest China (Lincang , Shuangjiang, Cangyuan, Gengma). Reproduction method

Male animals appear extremely ferocious and powerful in their first stage. The female's menstrual cycle lasts for 30-40 days. During menstruation, the skin on the buttocks and the base of the tail will be obviously swollen and red. The gestation period is 162-186 days, each litter gives birth to one calf, and the lactation period is 6-8 months. Sexual maturity occurs at the age of 3-5 years, and life span is 26 years. Current status of the population

The distribution area is also relatively narrow and protection should be strengthened. In the past, it was only known to be distributed in Myanmar, Thailand and Assam, India. It was not discovered until the 1950s in southern Yunnan, China. The number of dolphin-tailed monkeys in China is small. In 1988, there were about 900 to 1,000 in Yunnan. According to a 1993 survey, the dolphin-tailed monkeys in Wuliang Mountains are close to extinction. It is estimated that there are only about 900-1,000 dolphin-tailed monkeys in Yunnan. Dove-tailed monkey

The shrinking and deteriorating habitat and human hunting are the main factors that endanger this species. The main habitats of dolphin-tailed monkeys are the Wuliang Mountains and the primeval forests on both sides of the Lancang River. They have been completely destroyed. According to an investigation in Wuliang Mountains in 1992, only two groups of more than 10 dolphin-tailed monkeys remain.

Dog-tailed monkeys are distributed in six protected areas in Yunnan including Xishuangbanna, Nabanna River, Lincang Snow Mountain, Nangun River, Jingdong Wuliang Mountain, and Xinping Ailao Mountain Nature Reserve. . Protection level

Listed in the 2013 Red List of Endangered Species ver3.1 of the World Conservation Union (IUCN) - Vulnerable (VU).

Listed as a first-level protected animal in China's "List of National Key Protected Wild Animals"

Listed as an endangered species in the "Red Data Book of Endangered Animals in China".