Ocean predators are animals that hunt and feed on other sea creatures. Two of the most well-known ocean predators are orcas and sharks. Orcas, also known as killer whales, are the largest member of the dolphin family and are found in all oceans. They are highly intelligent and have a complex social structure. Sharks are a species of fish that have been around for millions of years and can be found in all oceans. They have a unique set of adaptations that allow them to be successful hunters.