Corals National Geographic

Meet the tiny organisms that combine to create the world's great tropical reefs. Find out about the threats that imperil corals worldwide.
What are coral reefs? Coral can be found in tropical ocean waters around the world. But how much do you know about reefs and the tiny animals—polyps—that build them? Learn all about coral and why warming waters threaten the future of the reef ecosystem.
Images of devastated coral reefs, a common reminder of climate change, can give the impression of a static landscape. But time-lapse footage of coral bleaching as it happens shows a surprisingly active process.

Jump Into Science: Coral Reefs by Sylvia A. Earle: 9781426323645

Coral reefs by Gracie Little on Prezi

Corals National Geographic

Corals National Geographic

coral reefs

National Geographic Kids Readers: Coral Reefs by Kristin Baird Rattini

Photo Gallery: Coral Kingdoms

Yes. Coral Reefs are dying.. An aim to raise awareness for our

Coral Reefs 101 National Geographic

Staghorn coral, facts and photos

Corals, National Geographic

Why scientists are 'weeding' coral reefs

Coral Reefs 101 National Geographic

After dark: corals shine bright on the Great Barrier Reef at night - Australian Geographic