What are seals?

Seals are aquatic mammals that belong to the Mammalian superfamily Pinnipedia. This makes them closely related to sea lions and walruses and much more distantly related to whales, dolphins, and porpoises. "True seals" are recognizable by their lack of ears. Sea lions and fur seals have small ear flaps, but otherwise look very similar to seals.

Seals typically eat a diet of marine invertebrates and small fishes. They also serve as food for sharks and large dolphins (like the orca).