"There is a kind of fish in the north called Kun. Kunda, thousands of miles away. Become a bird. Its name is Peng. Peng Bei is thousands of miles away. "

Zhuangzi said that there was a big bird named Peng, which was changed from a big fish named Kun. Legend has it that there is a big fish called Kun, whose length and width are unknown. It flew into the sky in one day and became a big bird that can fly several Wan Li. Its name is Peng. Peng's back is thousands of miles wide.

Actually, these two are an animal ~