Whales and Sharks

First of all, you must know that whales are not fish, but mammals, and their names are not called whales, but whales. There are many kinds of sharks in the world (about 60 kinds), and there are only several kinds of whales. , their species are different in body shape, size and average life span. Of course, the waters are deep and shallow. If you compare the largest whale (killer whale) with the largest shark (great white shark), whales are more powerful in all aspects. About extinction The problem is that they are at the top of the marine food chain. The real question of when they will become extinct depends on who humans want to eat first