When you think of top ocean predators, you probably think of sharks. That’s wrong!
Originally orcas, which are the largest members of the dolphin family, where called killer of whales. Then the name transformed into killer whales, leading to people to believe that they belong to the whale family... Well they actually eat whales and sharks as well!
It's sorta like saying that you don't eat pork because you only ate the rib meat lol