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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,...
Japanese scientists videotaped this female giant squid, alive, at the water's surface
overview

Giant Squid

 Giant squid live up to their name: the largest giant squid ever recorded by...
Two octopuses sitting underwater highlight the different textures the animals can take on.
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Cephalopods

 A highly intelligent group of ocean dwelling creatures, the living cephalopods...
A shell placed in seawater with increased acidity slowly dissolves over 45 days.
overview

Ocean Acidification

 Ocean acidification is sometimes called “climate change’s equally evil twin,”...
A photo of a squid using bioluminescence to hide in the deep sea.
overview

Bioluminescence

 You may have seen the sparkle of fireflies on a summer’s night. The fireflies...
An orange and white octopus sits on the bottom of the ocean.
Photo

White-striped Octopus

 Octopuses are famous for their sophisticated intelligence; some scientists even...
A Red Reaper Cuttlefish
Photo

Reaper Cuttlefish

 Usually a reddish color with a pair of black spots, like all cuttlefish, the reaper...