How many kinds of crabs are there? What kind of cancer is it?

There are many kinds of crabs that humans can eat, such as cream crab, swimming crab, red crab, Alaska crab, hairy crab, king crab, snow crab and so on. You can fry, steam, marinate and bake. There are many kinds of crabs in Cancer. There are 30 kinds of crabs every day. Typical crabs, atypical crabs and hybrid crabs are not excluded. ......................................................