It is a rare deer species endemic to China. It was widely distributed in the eastern and central regions of China, especially in the marshy areas along the coast of the Yangtze River Delta. Originating about 2 million years ago, the number in history once reached hundreds of millions. However, due to natural changes, narrow dietary habits, and human activity interference, elk rapidly decreased after the Shang and Zhou dynasties and became extinct in China by the early Qing dynasty. Large in size, males can reach a shoulder height of up to 137 centimeters and weigh up to 250 kilograms, with unique inverted three legged antlers. Gentle temperament, good at swimming, and feeds on plants such as grasses and mosses. At the end of the 20th century, elk was reintroduced into China.

It is a rare deer species endemic to China. It was widely distributed in the eastern and central regions of China, especially in the marshy areas along the coast of the Yangtze River Delta. Originating about 2 million years ago, the number in history once reached hundreds of millions. However, due to natural changes, narrow dietary habits, and human activity interference, elk rapidly decreased after the Shang and Zhou dynasties and became extinct in China by the early Qing dynasty. Large in size, males can reach a shoulder height of up to 137 centimeters and weigh up to 250 kilograms, with unique inverted three legged antlers. Gentle temperament, good at swimming, and feeds on plants such as grasses and mosses. At the end of the 20th century, elk was reintroduced into China.

The elk (scientific name: Elaphurus davidianus) is the only deer species in the family Deer and genus Deer. Because its head and face are long and narrow like a horse, its horns are slightly different from other deer, its hooves are wide like cows, and its tail is slender like a donkey, it is also known as the Four Elephant. Its horn shape is unique, opposite to the horns of other deer. The front branch splits into smaller branches, while the back branch hardly splits. The limbs are sturdy, the main hooves are broad and fleshy, with well-developed hanging hooves, and there is a loud knocking sound when walking. I prefer swamp and wetland habitats and feed on green grass and aquatic plants. Good at socializing, good at swimming, and enjoys eating tender grass and aquatic plants.