All kinds? Guess the zodiac

According to Mr Wen Yiduo's textual research, the dragon may be a big snake. With the addition of other clan totems, four-legged crocodiles and animals, including horse's head, mane and tail, cow's ears, tiger's nose, rabbit's eyes, fish's scales and whiskers, dog's legs, eagle's claws, deer's horns and so on, were added to the snake. These statements are based on some records in ancient books and are proved by unearthed cultural relics and some traditional folk customs.