Aquatic mammals such as whales and dolphins live and feed in the ocean. The Blue Whale is the biggest mammal on Earth.
The Ultimate Seal Quiz
There are many different kinds of seals, each with a different size, shape, color and behavior. Some seals are smarter than others, some seals diver deeper than others, some like warm water and some like the icy waters of the poles. Take this quiz to learn more about seals.