The orca or killer whale (Orcinus orca), is a marine mammal species of the suborder of toothed whales, the odontocetes.
It has a cosmopolitan distribution and lives in the arctic and antarctic regions up to tropical seas. Its diet is very diverse, although populations often specialize in particular types of prey. Some eat fish, while others hunt marine mammals such as sea lions, seals, walruses and even large whales (usually calves). Orcas are considered to be super predators.
Orcas are highly social, some populations are composed of several families that are among the most stable of all animal species. Sophisticated hunting techniques and vocal behaviors, which are often specific to a particular group and passed down through generations, have been described by scientists as cultural manifestations.
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