Belonging to the primate order, it is a mammal closely related to humans. Medium in size, with equal limbs or slightly longer hind limbs, varying tail lengths, cheek pouches and arm calluses, suitable for arboreal or terrestrial life. The skull is larger and the cranial cavity is spherical, which is due to the shortening of the jaw and flattening of the face. Smell is usually secondary to vision and touch, and certain species have highly developed olfactory centers in the brain. The social behavior of monkeys is complex, usually living in groups and forming a hierarchical social structure. There is a variety of food, including fruits, leaves, insects, small animals, etc. In culture, monkeys are often seen as symbols of wit and flexibility.

The pronghorn is a mammal belonging to the pronghorn family and the pronghorn genus. The body length is about 1.5 meters and the shoulder height is about 1 meter. Males weigh around 50 kilograms, while females weigh around 40 kilograms. Medium in size, well proportioned and agile. It inhabits semi-arid open grasslands at elevations of 900-1800 meters from northern Mexico to southern Canada. Mixed male and female clusters in winter, grouping in early spring, with young males and females separated, and adult males moving alone. The food consists of various grasses and shrubs, and even rough or poisonous plants that livestock do not eat. Vigilant personality, sharp vision, good at running, with a maximum speed of nearly 100 kilometers per hour.