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overview
Deep-sea Corals
It may be the last place you’d expect to find corals—up to 6,000 m (20,000 ft)...
overview
Corals and Coral Reefs
Coral reefs are the most diverse of all marine ecosystems. They teem with life,...
overview
Bioluminescence
You may have seen the sparkle of fireflies on a summer’s night. The fireflies...
slideshow
Backbone of Biodiversity at Risk
The International Union for the Conservation of Nature (IUCN) maintains the...
Thu, 10/28/2010 - 19:01

slideshow
The Ocean Throughout Geologic Time, An Image Gallery
Evidence shows that life probably began in the ocean at least 3.5 billion years...
Tue, 09/20/2011 - 15:30

slideshow
Zooxanthellae and Coral Bleaching
Tiny plant-like organisms called zooxanthellae live in the tissues of many animals,...
Thu, 12/03/2009 - 12:14
slideshow
Two Views of Coral Reefs: Thriving and Threatened
Coral reefs are beautiful, vibrant ecosystems that house roughly one quarter of all...
Tue, 12/15/2009 - 11:19

slideshow
Endangered Ocean Animals
The Endangered Species Act (ESA) was signed into law on December 28, 1973 by...
Mon, 12/02/2013 - 14:00

slideshow
The Hyper Eyes of Hyperiids: How Some Shrimp-Like Creatures See Light in the Deep Sea
Hyperiid amphipods are small crustaceans related to sand fleas and distantly...
Tue, 08/19/2014 - 10:47

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