The orca (Orcinus orca), or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. The only extant species in the genus Orcinus, it is recognizable by its distinct pigmentation; being mostly black on top, white on the bottom and having recognizable white eye patches.
A wild orca pod can cover over 99 miles (160 kilometers) a day, foraging and socializing. They were give the name "killer whale" by ancient sailors who saw them preying on large whales.
They are known as Orcas, Killer Whales or – off the west coast of North America – Blackfish. They are found in all of the world’s major oceans, covering all latitudes, and inhabit both coastal waters and open oceans. Each population of orcas, while similar in appearance, has vastly different habits.
Learn killer facts about killer whales with the latest orca news, articles and features from Live Science.