Not-OK Coral

Full review of status finds a quarter of reef-building species in peril

By Susan Milius, 18:06 PM July 10, 2008

At least a quarter of the planet’s reef-building corals face a noticeable risk of extinction, according to the first large scale review of hundreds of species.

Out of 845 known species of warm-water corals, 231 meet the criteria for listing in worrisome categories on the international IUCN Red List of Threatened Species, says marine biologist Kent Carpenter of OldDominionUniversity in Norfolk, Va.

The troubled species fall into the vulnerable, endangered or critically enda...

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