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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.
Here are some of the imperative killer whale facts for kids including killer whales diet, habitat, vocalisations, behavior, reproduction, widespread range and distribution. The killer whale (Orcinus orca) is also known as orca or orca whale, and rarely referred to as blackfish. The whale is a toothed whale and it belongs to the oceanic dolphin family. These whales are known to survive in almost all the major oceans including Arctic, Antarctic and other tropical regions.