The rabbit on the moon is called Jade Rabbit. Jade Rabbit, also known as Moon Rabbit, is a kind of rabbit in China ancient mythology. Folklore is the incarnation or pet of Chang 'e, and the image of Jade Rabbit in China mythology is playing tricks on the moon. There are also rumors that Yutu was originally Houyi, because the Goddess Chang'e flying to the moon missed Houyi. In order to be with Chang 'e, Hou Yi was willing to be her favorite animal-Jade Rabbit, but Chang 'e never knew that Jade Rabbit was the Hou Yi she missed day and night.