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.

Coral Kingdom Pictures, Coral Photos, Photo Gallery, Picture Gallery, Desktop Wallpaper – National Geographic

Protecting Our Coral Reefs: The Impact of Sunscreen

The world's coral reefs are dying—here's how scientists plan to save them

Grandpa's Reef - 360 National Geographic

coral reefs

Staghorn coral, facts and photos

Crystal Reef by National Geographic at Fleet Farm

Endangered Coral Reefs and Their Natural Recovery and Rebirth

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

Photo and caption by Bill Lamp'l Fiji is known as the soft coral capital of the world. This shot …

Photo Gallery: Coral Kingdoms

Corals National Geographic, 52% OFF

Corals National Geographic