Why does the little white rabbit wipe its butt with the big white bear?

The big bear wipes the butt with the little white rabbit joke:

The big bear and the little white rabbit go to the toilet together. The Big Bear asked the Little White Rabbit: "Little White Rabbit, are you afraid of getting dirty?" The Little White Rabbit said, "I'm not afraid of getting dirty." The Big Bear asked the Little White Rabbit again: "Then Little White Rabbit, will you shed your hair?" Little White The rabbit said: "I don't shed hair." Then the big bear grabbed the little white rabbit and wiped his butt.

The next day, after the big bear finished his meal, a little mouse walked by. The big bear asked the little white rabbit: "Little mouse, are you afraid of getting dirty?" The little mouse said: "I'm not afraid of getting dirty." The big bear asked the little mouse again: "Little mouse, will you shed your hair?" The little mouse said: "I It won’t shed any hair.” Then the big bear grabbed the little mouse and wiped his mouth. After wiping his mouth, the little mouse smiled and said, "Big Bear, I am yesterday's little white rabbit!".

The white rabbit is a kind of rabbit. Its whole body is white and its eyes are usually transparent. It was considered auspicious in ancient times. According to legend, the horse of Qin Shihuang was named White Rabbit, and there is also a place with the same name, White Rabbit.

It has long, tubular ears (the ear length is several times longer than the ear width); a short tufted tail, and strong hind legs that are much longer than the forelimbs. Lives on the ground, is good at running, has wide posterior nostrils, and is fully supplied with oxygen when running; newborn rabbits have fur on their bodies, open eyes, and ears with hearing, and will soon be able to run. They are commonly known as rabbits.

The baby rabbits of the rabbit species are hairless when they are born, with their eyes closed and no hearing in their ears. They do not grow hair until 7 days later. They have hearing when they open their eyes and need maternal care. There is no difference in body structure between domestic rabbits and wild rabbits. The main difference lies in the condition at birth. Among them, the cave rabbits in the genus Cavetus have been domesticated into domestic rabbits. Although there are many varieties of rabbits in the world, they are all domesticated from the European rabbits in the Mediterranean region. Rabbits can live in groups, but hares generally live alone.

Reference for the above content: White Rabbit (Mammalia)_Baidu Encyclopedia