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Learn More
In Learn More the National Geographic magazine team shares some of its best sources and other information to expand your knowledge of our featured subjects. Special thanks to the Research Division.

Related Links

Kewalo Marine Laboratory
Explore the rich marine life of Hawaii by searching the Marine Invertebrate Reproduction Database.

This online interactive community is dedicated to the education of marine aquarists worldwide and offers bulletin boards, an immense library, and monthly newsletter.

Newton BBS: Ask a Scientist
The volunteer scientists at this site for teachers and students answer questions on topics ranging from astronomy and chemistry to mathematics and zoology.


Hoover, John. Hawaii's Sea Creatures: A Guide to Hawaii's Marine Invertebrates. Mutual Publishing, 1999.

Moore, Janet. An Introduction to the Invertebrates. Cambridge University Press, 2001.

Parker, Steve. Nematodes, Leeches & Other Worms. Compass Point Books, 2006.

Rouse, Greg W., and Fredrik Pleijel. Polychaetes. Oxford University Press, 2001.

NGS Resources

Nicklen, Paul. "Where Currents Collide." National Geographic (August 2006), 120-35.

Liittschwager, David, and Susan Middleton. Archipelago: Portraits of Life in the World's Most Remote Island Sanctuary. National Geographic Books, 2005.

Huxley, George. Life in the Ocean. National Geographic Books, 2003.

Earle, Sylvia A. Sea Critters. National Geographic Books, 2000.

Lutz, Richard. "Deep Sea Vents: Science at the Extremes." National Geographic (October 2000), 116-27.

Fisher, Charles, and Ian R. MacDonald. "Life Without Light." National Geographic (October 1996), 86-97.

Brower, Kenneth. "In Hawaii's Crystal Sea, A Galaxy of Life Fills the Night." National Geographic (December 1981), 834-47.

Sandrof, Samuel. "The Worm Turns." National Geographic (June 1946), 775-86.