Indian grey langur, also known as Hanuman langur, Bengal long-tailed langur, is a genus of grey langurs in the family Primateidae. Slender body, body length 58-64 cm, weight 9.9-13 kg, tail length of more than 100 cm. It is found in India and Bangladesh, inhabiting tropical or subtropical forests, and is also found and lived near human settlements. They are a highly ground-dwelling species, spending 80% of their day on the ground. It is active during the day, arboreal at night, and has seasonal vertical migration. Mainly eat a variety of leaf buds and fruits.
The head is round, the snout is short, and the limbs are long. The coat color is mainly brown and gray, with a red back and white fur on the ventral surface. Crown hairs, cheek hairs and eyebrows are well developed on the top of the head. Eyebrows grow forward and are also long. The forehead has some grayish-white hairs that radiate in a spiral-like manner. The head, face, chin, and throat are covered with white hairs, and the hands, feet, face, and ears are black. The pups are pale at birth, but darken before three months; The coat color is also different from that of adults, it is brownish-black, becoming light gray at two to five months of age, and then gradually becoming yellow-brown, and then turning grayish-yellowish brown in adulthood.
I usually like to form small groups of more than ten animals, or large groups of close to 100 animals, and spend 5 hours a day grooming each other. Each monkey group occupies a range of activity, about 30 to 60 square kilometers. The range of activities of the various groups can overlap and live in harmony. The call is relatively low, often making a "whining wave" sound. Whether running on the ground or jumping on a branch, the long tail is always bent high. They are very good at jumping, often reaching more than 8 meters at a time, and can easily jump from a 12-meter-high tree to the ground.
The genus Grey Langur has a total of 7 species classifications, including the Indian Grey Langur, the Tamarind Grey Langur, and the Kashmiri Grey Langur. It is mainly concentrated in the Indian subcontinent and is adapted to a wide variety of habitats, from arid areas to tropical evergreen rainforests. Species in this genus are the larger of the langur population, with mostly brown and grey coats and a tail usually longer than the body. In India, the grey langur is known as the "sacred monkey" and "divine monkey", and the "monkey king" Hanuman, who was created in its original form, is the protagonist of the famous mythological stories circulating in the local area and is deeply loved by people.