The killer crab is a strange creature living in the southeast coastal waters of Japan. This kind of crab is called "Macrocheira kaempferi", which is a spider crab and the largest crustacean known in the world. It got the English common name of "Dead Man Crab" because of its carrion, which led China to translate it into a corpse-eating crab and was finally rumored as a "killer crab". In fact, it can't kill humans, but it is good at dealing with fish, and even has sharks in its recipes.