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Orcas are called killer whales due to the fact that they are the top predator in the ocean. They are the hunters, not the hunted. They eat almost anything and everything they â¦ can find including other whales.hey are known to eat fish, squid, seals, sea lions, penguins, and even other whales, such as sperm whales. There are no reports of whale attacks on humans in the wild, although some have be known to happen in captive situations.
Orcinus translates to âof the kingdom of the dead,â and orca refers to a kind of whale. What we now know is that not all orcas prey on other cetaceans. Some populations specialize on fish, some on seals, some on sharks and rays, and some are generalists and eat many different things!