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Orca whales, also known as killer whales, are the largest species of the dolphin family and among the most widely recognized marine mammals. They are known for their distinctive black and white coloration and tall dorsal fins. Orcas are apex predators, feeding on a varied diet that includes fish, seals, sea lions, and even other whales. They are highly intelligent and social animals, living in matriarchal family groups called pods. These pods work together to hunt and can be found in all oceans of the world, although they prefer colder waters. Orcas have complex communication systems that include vocalizations and body movements, and they are known for their acrobatic displays both above and below water. In the hierarchy of sea life, orca whales fall under the category of mammals and more specifically, whales. As a member of sea life, they share characteristics with other marine animals, but their unique traits as a highly intelligent and social predator distinguish them from other marine mammals.