"There is a fish in Beiming, and its name is Kun. Kun is so big that I don't know how many miles it is. When it turns into a bird, its name is Peng. The Peng's back is so big that I don't know how many miles it is." ”
Zhuangzi said that there is a big bird called Peng, which evolved from a big fish called Kun. Legend has it that there is a large fish named Kun, who is unknown how long and how many miles wide. It soars into the sky in one day and turns into a large bird that can fly tens of thousands of miles. It is named Peng. Peng's back is thousands of miles wide.
Actually, these two are the same animal~