Wolves are carnivorous animals in the family Canidae. There are a total of 11 subspecies. Medium and symmetrical body shape, slender limbs, toe mobility, conducive to fast running. The head and palate are pointed, the face is long, the nose protrudes, the ears are pointed and upright, the sense of smell is sensitive, and the hearing is developed. Canine teeth and split teeth are well-developed. The fur is thick and long. The forefoot has 4-5 toes, while the hind foot usually has 4 toes; Claws are thick and dull, unable to stretch or slightly able to stretch. Hairy tail, more developed. It is a nocturnal animal that is good at running quickly and over long distances. It prefers to live in groups and often curls up alone or in pairs in caves during the day. However, it also comes out for activities during the day in sparsely populated areas. Come out at night to search for food.