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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.
Introduction to Orcas. Throughout history, orcas have been inadequately considered and the lack of knowledge about them, as well as the myths that have circulated for generations, have caused them to be cataloged as sea monsters, enemies of all aquatic species and mainly, âkillerâ whales. This belief comes from long ago. Their scientific name is Orcinus orca, from it, the word Orcinus means âfrom the realm of the dead,â relating to the Roman god Orcus master of the underworld. Later, poor translations ended in a name that eventually brought more fear to people, killer whales; both titles are incorrect.