noaa.gov

Corals

coral polyps
Most corals are made up of hundreds to hundreds of thousands of individual coral polyps like this one.

Coral reefs are some of the most diverse ecosystems in the world. Thousands of species rely on reefs for survival. Thousands of communities all over the world also depend on coral reefs for food, protection and jobs.

The Coral Tutorial is an overview of the biology of and threats to coral reefs, as well as efforts being made to conserve and protect them. It includes images, animations, and videos.

The Roadmap to Resources complements the tutorial. It directs you to specific online coral data and information from the National Ocean Service and NOAA.

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The National Science Teachers Association (NSTA) has included this online resource in its SciLinks database.
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