The spotted deer is a mammal of the deer family in the order Artiodactyla, also known as the spotted deer. Named after the white spots resembling plum blossoms in summer. The lifespan is generally about 20 years. Sika deer are distributed along the Pacific coast of Japan and Russia. In China, it is mainly distributed in mountainous areas such as Northeast China, Xiaoxing'an Mountains, Changbai Mountain, and East and South China. Group living, preferring to inhabit mountain forests or forest surroundings, often active in the early morning and dusk to forage, and resting in forests or more secluded places during the day. Due to human indiscriminate killing, the number has sharply decreased. Belonging to the first-class protected animals in China, overfishing is prohibited..