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What is the Difference Between Seals and Sea Lions?

California Sea Lion / Jennifer Kennedy, About.com

The term 'seal' is often used to refer to both seals and sea lions, but there are several characteristics that set seals and sea lions apart.

More About Seals and Sea Lions
Marine Life Spotlight10

New Zealand Fur Seal

New Zealand fur seals are the deepest diving fur seals. They are found on rocky coasts in New Zealand, Australia and Tasmania.

Porbeagle Shark

Porbeagle sharks are found in cold waters worldwide. They are also known as mackerel sharks, blue dogs and bottle-nosed sharks.

Crabeater Seal

Crabeater seals are the most numerous seal species in the world. They are found in the Antarctic and sub-Antarctic and rest on pack ice during the day and forage at night.

Leopard seal

Leopard seals are voracious predators that live in Antarctic and sub-Antarctic regions of the Southern Hemisphere. They prey upon penguins, krill and a wide variety of other animals.

Do Flyingfish Really Fly?

Do flyingfish (flying fish) really fly? Learn more about the flight of these tropical fish.


The term flyingfish or flying fish includes more than 60 species of fish that can glide long distances over the water. These fish live in tropical salt water habitats.

Northern Elephant Seal

The northern elephant seal is a large seal species that lives in the eastern Pacific Ocean. The species is named for the male's large, fleshy nose.

Asian Shore Crab (Hemigrapsus sanguineus)

Information about the Asian shore crab or Japanese shore crab, a species that is native to the Western Pacific Ocean and was transported to the U.S. and Europe through the ballast water of ships.

Southern Elephant Seal

The southern elephant seal is named for the male's large, fleshy nose. These seals live in cold waters in the Antarctic and sub-Antarctic regions.


Narwhals are the whales famous for their tusks - which was once traded as "unicorn horn." Learn facts about narwhals, including where they live, what they eat, how they reproduce and threats to the species.

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