By A Mystery Man Writer
Coral reefs are large underwater structures composed of the skeletons of coral, which are marine invertebrate animals. Corals are found all over the world’s oceans.
Coral Reef Communities (U.S. National Park Service)
Coral reef facts for kids! - National Geographic Kids
What is coral? - Great Barrier Reef Foundation
Are corals animals or plants?
Factors Affecting Coral Reefs
Geo explainer: The threats to coral reefs - Geographical
Coral Reef For Kids Exploring the Coral Reef
Coral Reef Colors – A Student's Guide to Tropical Marine Biology
How are coral reefs formed?