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.

The end of coral as we know it?

Climate-resilient coral species offer hope for the world's reefs

The World of Coral Reefs: Explore and Protect the Natural Wonders

Climate-resilient coral species offer hope for the world's reefs

Endangered Coral Reefs and Their Natural Recovery and Rebirth

Great Barrier Reef Exploring Oceans

Coral Reefs – BuddingGeographers

Coral

Corals

I love grabbing baby corals! Super fun and super quick #marinebiologis

I'm obsessed with my little coral friends so now you have to be too #M

Corals National Geographic

Saving coral: rebuilding hope reef

Corals National Geographic

Coral