Roe deer (scientific name: Capreolus capreolus) is a small and medium-sized deer of the genus Roe deer (Capreolus) of the family Ceraceae (Cervidae). Because of its small size, high alertness and unique behavior, it is widely distributed in temperate to cold temperate forests in Eurasia. It is a familiar "forest spirit".

The roe deer (scientific name: Capreolus pygargus) is a species of deer in the family Deer and genus Deer. The body length is about 1.2 meters, the weight is about 30 kilograms, and it has a slender neck and large eyes and ears. No fangs, hind limbs slightly longer than forelimbs, short tail, male roe deer with horns, female without horns, male long horns only divided into three forks. They inhabit different types of deciduous forests, mixed forests, and forest grasslands, and are active in sparse forest belts, river valleys, and gentle slopes. The family group consists of female roe deer and their offspring, usually 3-5 individuals, and male roe deer only join the group in midsummer. Morning and evening activities, most active at night, herbivorous animals. Usually twins.