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Corals, sponges, and algae are the major components of most coral reef communities as shown in this picture.
overview

Corals and Coral Reefs

 Coral reefs are the most diverse of all marine ecosystems. They teem with life,...
two mangrove trees in the crashing waves
overview

Mangroves

 Mangroves are survivors. With their roots submerged in water, mangrove trees thrive...
On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
overview

Sea Level Rise

 The ocean never stops moving. When you visit the beach, waves roll in and recede...
Coral scientist Dr. Amy Baco-Taylor observed corals like these on her first submarine dive to a deep-sea coral bed off the coast of Hawaii.
slideshow

Diversity of Deep-Sea Corals

 Sample the surprising diversity of deep-sea corals. See some of the ways they...
Wed, 06/08/2011 - 17:25
A team of scientists explore the Arctic ocean.
slideshow

Under Arctic Ice

 Hidden beneath Arctic ice is a world few have ever seen. Take the icy plunge with a...
Tue, 01/04/2011 - 14:48