It is said that there is an ever-burning lamp made of Jiao Ren oil in the mausoleum of the First Qin Emperor. Scientists infer from this. Jiao Ren may be a marine mammal, such as a whale or walrus.
Mermaids originated in Europe. His upper body is human and his lower body is fish. Most of them are symbols of beauty. It is said that their tears can be turned into pearls.
Dugong is a real mammal that lives in fresh water and looks like a mermaid from a distance. Scientists believe that dugong is the origin of mermaid legend.
Sai Ren's theory originated in Greece. Usually appears as a woman. Singing at sea attracts lost sailors and then eats them. It is usually an image of a devil, a snake and a scorpion. Poseidon, the Greek middle sea god, is also half man and half fish, which is also a kind of siren.