The term 'Barking Marine Mammal' is a reference to the SEAL, a four-letter word. Seals are semi-aquatic mammals that live in the ocean and on land. They are known for their barking vocalizations, which they use to communicate with each other. Seals have a streamlined body shape and webbed feet, which help them to swim quickly and efficiently. They feed on fish, crustaceans, and mollusks, and can be found in both cold and warm waters around the world.