它最大可长45尺（20米），是海洋中的顶级捕食者，一生中需要换1万颗牙齿，传说它能治疗癌症，风湿痛，消炎，降血脂，在中国，每年超过2万条鲨背鳍被食用，但事实上它的背鳍营养价值和一碗粉丝差不多，还不如一个鸡蛋，现在已经禁止食用背鳍。它就是鲨鱼，传说第三纪地层化石种巨噬人鲨，齿长15.24cm，估计体长可达90m，
Its maximum length is 45 feet (20 meters). It is the top predator in the ocean. It needs 10,000 teeth in its lifetime. It is said that it can cure cancer, rheumatism, inflammation and blood lipid. In China, more than 20,000 shark dorsal fins are eaten every year. But in fact, its dorsal fins have the same nutritional value as a bowl of fans. It is not as good as an egg. It is now forbidden to eat dorsal fins. It is a shark, legendary Tertiary fossil macrophage shark, teeth 15.24 cm long, estimated to be up to 90 m long.