Coral Reefs: The Fascinating "Rain Forests of the Sea"

Coral reefs are one of the most amazing structures in the sea. They grow slowly but if they are left alone by man, they can become huge: Australia's Great Barrier Reef is more than 1,200 miles long.

Coral reefs are sometimes called the "rain forests of the sea" because they support so many other types of marine life. Find out all about the fascinating phenomenon of coral reefs at the Web site below.