The Przewalski's horse is a mammal belonging to the mammalian family Macroma in the order Neodactyla; Its body shape is similar to that of a domestic horse, with a large head and thick neck, short and round ears, no long frontal hair, short and upright mane, a black ridge line in the center of the back, short tail base hair, and black front of the lower limbs; Its summer fur is light brown on the back, light on the sides, and yellow white on the abdomen; its winter fur is long and thick, with a lighter color, appearing light yellow. The Przewalski's wild horse is also known as the Mongolian wild horse or the Junggar wild horse. Due to multiple reasons such as ruthless hunting by humans and the deterioration of the ecological environment in their habitats, Przewalski's horses became extinct in the wild in the mid-20th century.