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.

of the Ocean - Can coral reefs survive the Anthropocene epoch?

The end of coral as we know it?

3 dive day: Flinders Reef (Open Water Certified Divers) - Scuba World Reservations

Australia Launches Competition to Save the Great Barrier Reef

Coral Reefs 101 National Geographic

Coral reef facts for kids! - National Geographic Kids

Scientists are trying to save coral reefs. Here's what's working.

Corals National Geographic

National Geographic Crystal Reef Science Kit : Target

A 'super reef' recovery raises hopes — but also questions about its resilience