Orcinus orca, commonly known as the killer whale, is a large marine mammal belonging to the dolphin family. They are easily recognizable by their distinctive black and white coloring, with a robust body that can reach lengths of up to 32 feet. Killer whales are found in oceans worldwide, from polar regions to tropical seas. These social animals live in groups called pods, which can consist of a few individuals to over 40. Orcinus orca is known for its intelligence and complex social structures, often exhibiting cooperative hunting techniques and strong family bonds.