reefs

Extensive Hidden Coral Reef Found At The Mouth Of The Amazon

But it may be in serious danger.
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Watch: Coral Reef Is Destroyed In Seconds By Cruise Ship Anchor

Government officials say the reef is zoned for cruise ship anchors even though it's illegal to damage coral in the Cayman Islands.
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Healthy, Dying, Dead: This Is What It Looks Like When A Reef Is Bleached

These images show the dire threat to the world's reefs, which hold some 25 percent of marine life.
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Here's Evidence Something Very Bad Is Happening In Our Oceans

You may never see them, but coral reefs are suffering along with the rest of our planet.
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