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Science, Evolution, and Creationism, by the National Academies, focuses on teaching evolution in today's classrooms. Check out the other publications in our online store.
This shrimp is one of 30,000 species of crustaceans in our oceans.
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Windows Original, adapted from Corel Photography

Other Crustaceans

Crabs aren't the only crustaceans in the sea! The Cirripedia class is also very common. You probably know this class by its more common name, Barnacle. Barnacles are small, rounded animals generally found on rocky reefs or shores. They are also seen attached to boats.

Barnacles have a hard shell, and use their 'feet' to capture small animals called plankton that swim in the oceans. They usually live in large volumes together, and are sometimes covered up by other sea life. Most barnacles look like rocks, but some, like the Short-stalked Goose Barnacle, are much prettier.

Shrimp are also crustaceans. Like crabs, shrimp live near rocks and reefs. They have a longer body rather than a round one, and range from less than an inch to 6 inches in length. Grabham's Cleaner Shrimp has a very important job. It attracts fish with its white antennae and legs. When the fish gets close, it grasps the fish and removes parasites and cleans the fish!

There are many other types of crustaceans, like prawns and lobsters. All together, there are over 30,000 species of crustaceans in the seas. There just isn't enough room on this page to cover them all!

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The Spring 2010 issue of The Earth Scientist, focuses on the ocean, including articles on polar research, coral reefs, ocean acidification, and climate. Includes a gorgeous full color poster!

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA