The primary diet of an orca, also known as the killer whale, largely consists of marine mammals, fish, and other sea creatures. Orcas are apex predators, meaning they sit at the top of the food chain, and their diet can vary depending on their geographic location and specific ecotype. Resident orcas typically feed on fish, especially salmon, while transient orcas are known to hunt larger prey such as seals, sea lions, and even other whales. Orcas are highly social and often hunt collaboratively in pods, employing sophisticated techniques and communication methods to optimize their hunting success.