Black langur introduction: Langur, with a body length of about 50-60 cm, a small head, a tail longer than the body, and slender limbs; there is an upright crest on the top of the head, and the hair on the back of the body is longer than the hair on the ventral surface. And dense, buttock warts are larger; the whole body is black and shiny, with white hair from the ear base to the cheeks, and the hands and feet are black. It mainly eats fruits, seeds, buds and petioles. It also eats fresh branches and leaves, flower buds, bamboo shoots, small birds and insects. Its food can reach more than 80 kinds.