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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

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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Northern Bottlenose Whale

Profile of the northern bottlenose whale - a beaked whale species found in the North Atlantic Ocean.


What are zooplankton? Learn about zooplankton and examples of zooplankton species.


What are phytoplankton? Learn about phytoplankton, examples of phytoplankton and its role in climate change.

Creature Feature: Fin Whale

This will be one of my final blog posts. I'm  not going anywhere, but the blog is.  About.com is launching an exciting new site design, but the design will no

What Is Phytoplankton?

Phytoplankton represent some of the tiniest, yet most abundant organisms in the ocean.  The term phytoplankton refers most basically to floating plants - the

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