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.

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Corals

This coral reef resurrected itself — and showed scientists how to replicate it : NPR

Corals National Geographic

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Corals National Geographic

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This coral reef resurrected itself — and showed scientists how to replicate it : NPR

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