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The different types of corals and their scientific names.

The different types of corals and their scientific names.

Corals are critical component in coral reefs, building the structure (along with coralline algae) and providing the habitat for a myriad of other species. Corals are sea anemones, which are very closely related to corals and illustruate much of what corals are.

Widespread coral reef decline has included the decline of reef fish populations, and the subsistence and artisanal fisheries that depend on them.