In the cold winter, snow falls on animals.

In the cold winter, there is heavy snow. One kind of animal is a rabbit.

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Rabbits are herbivorous vertebrates, belonging to the family Rabbinidae. The rabbit's head is smaller, slightly longer, its mouth is shorter, its upper lip is longitudinally split, and its eyeball is larger. The eye color varies from species to species, including pink, black and brown. Big ears, erect or drooping, are mostly one of the characteristics of the variety; The whole body is covered with thick fur.

The back is slightly curved and arched, and the abdomen is soft; The forelimbs are short and the hind limbs are long and powerful, especially the hind feet; Thin skin, underdeveloped sweat glands, only a few sweat glands on the lips, and skin has respiratory function; A small part of the scrotal skin of male rabbits is hairless.

Rabbits are widely distributed in the world, mostly in deserts, grasslands, steppes, forests or Woods. It is sleepy and active at night, but quiet during the day, timid and easy to be surprised, gentle but gregarious. Rabbits are herbivores. They feed on the roots, stems, leaves and seeds of plants and only eat their favorite foods. During 30-35 days of gestation, each fetus gives birth to 1- 12. The natural life span of rabbits is generally 4-9 years.

Rabbits have high medicinal value. Its meat is high in protein, low in fat and low in cholesterol. It has the effects of nourishing yin, cooling blood, invigorating qi, moistening skin, detoxifying and clearing heat, and has a certain conditioning effect on common symptoms such as dizziness, tinnitus and hypertension, and is known as "the essence of meat". Rabbits are widely used as experimental animals and play a unique role in the field of medical science research.

In the traditional culture of China, rabbits are auspicious animals, as recorded in the ancient book Ruiying Tu: Da Rui, the red rabbit, and Zhong Rui, the white rabbit; Fu Ruizhi in Song Dynasty also listed white animals such as white rabbits as auspicious things. In ancient China, ancestors thought rabbits were symbols of fertility. Rabbit is listed as one of the 12 Zodiacs in China.

The rabbit's mouth is very short, with upper and lower lips, in which the upper lip is longitudinally split (also called gouges where whole pieces were missing), the front teeth are exposed, and the mouth edge has tentacles. The upper lip is split in the middle, which is a typical three-flap mouth, very cute. Besides having two protruding front teeth, the rabbit has 28 teeth.