This is the well-designed Web site of the New England Aquarium, cosponsor with WGBH-TV of "Island of the Sharks," on which this Online Adventure Web site is based.

Learn how the Shark Specialist Group is working to help conserve threatened species of sharks worldwide.

This nonprofit institution's site offers substantial info on shark diversity, tagging, and attacks as well as descriptions of their research programs on shark vision, feeding, and more.

This foundation works to develop projects that contribute to a better understanding of sharks. Check out the shark video clips, find out about the sharks of Monterey Bay, and read about shark evolution and anatomy.

This site, also created by Mote Marine Laboratory, debunks common shark myths with the help of witty cartoons.

The official Web site for the country, this rich site offers detailed information on everything from adventure travel to business opportunities. Click here for the Embassy of Costa Rica as well.

This thorough site gives you everything you'd ever want to know about the Undersea Hunter, the live-aboard dive boat on which this expedition is based at Cocos Island.

In this quirkily fun site, delve into the island's unique history, including its recent designation as a UNESCO World Heritage site, and explore scads of useful links.

This Web site, which accompanied the acclaimed PBS series of the same name, features an interview with Howard and Michele Hall on the challenges of underwater filmmaking.

Leading marine biologist Peter Klimley, who has spent more than three decades studying shark behavior, offers fascinating new findings about these remarkable creatures. See our interview with Klimley.

Organized around provocative questions such as "What is a feeding frenzy?" and "Do sharks feel pain?" this comprehensive book seeks to debunk shark myths and mysteries with the latest scientific information.

A colorfully illustrated, large-format book on shark distribution, biology, senses, behavior, ecology, attacks, and myths—in short, the gamut.

If you want the authoritative guide to sharks and don't care if it's in black and white with drawings only, this is it.

A delightfully irreverent and witty general book on sharks that sets the tone right at the start by quoting Winston Churchill replying to a question in Parliament about shark repellent: "You may rest assured that the British Government is entirely opposed to sharks."

Though slightly outdated, this book combines rigorous scientific information with vivid anecdotes of shark attacks (including some gruesome photos) and other experiences with sharks.

Engaging memoirs by the doyenne of oceanographers.

A well-illustrated pocket guide to the world's sharks.

Written for scuba divers, this is a reference to the island's best dive sites. It is illustrated with the author's photographs and has good sections on the island's history, hiking, climate, and geography.

In Spanish and English, this coffee-table-style book about Cocos was a labor of love by a writer whose family has a long history with the island. Its two parts, one on treasure and the other on the undersea world, is lavishly illustrated with old maps, photos of the island and erstwhile visitors, and views of undersea life.