Did you know that those big, black and white marine mammals we call ‘Killer Whales’ are not really whales but the largest members of the Dolphin family? Their scientific name is Orcinus Orca, which is why the other name used for them is ‘Orca’. As for the ‘killer’ part, although Orcas are apex predators (there is no animal that preys on them), they rarely attack humans. They do work together however, to hunt in packs to bring down animals such as whales and sharks.