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A screenshot from video showing illustrations of ancient coral reefs.
video

Coral Reefs Changing Over Time

How do we know what coral reefs looked like hundreds of years ago? Often times, we...
Fri, 08/30/2013 - 06:55
Tiny sponge spicules.
Photo

Sparkling Sponge Spicules

These sparkling sponge spicules are microscopic needle-like structures that many...
The staghorn coral is listed as Threatened under the U.S. Endangered Species Act. It is one of 22 coral species listed.
Photo

Staghorn Coral

Staghorn (seen here) and elkhorn corals are listed as Threatened under the U.S....
A pearly razorfish
Photo

Pearly Razorfish

The pearly razorfish’s name may be slightly misleading since it is neither as...
The mandarinfish lives in western Pacific tropical coral reef ecosystems and lacks the scales that are typically seen on bony fish.
Photo

Mandarinfish Duo

These beautiful mandarinfish (Synchiropus splendidus) are covered in bright blue,...
It's a pygmy seahorse (Hippocampus bargibanti), found in Indonesia's biodiverse Coral Triangle and one of the smallest seahorse species in the world! They can change colors like a chameleon to blend into their environment. This helps to protect them from p
Photo

Can You Spot the Seahorse?

It's a pygmy seahorse (Hippocampus bargibanti), found in Indonesia's biodiverse...
In some reefs, small fishes such as this broad-barred goby protect corals by eating invading seaweeds.
Photo

Coral Goby Cleans Coral

One of the first signs of a sick coral reef is seaweed creeping across...
A scuba diver explores elkhorn corals growing on a tropical reef.
Photo

Exploring a Reef

A scuba diver explores elkhorn corals (Acropora palmata) growing on a tropical...
A screen shot from video "From Despair to Repair" showing a black and white image of a coral reef in 1975.
video

From Despair to Repair

Sit down with two veteran marine scientists, Dr. Nancy Knowlton and Dr. Jeremy...
Tue, 07/01/2014 - 12:59
Grey reef sharks are among the most versatile and tough predators on a Pacific coral reef, but they are also among the most vulnerable species, as they are threatened by wasteful fishing practices like shark finning.
Article

Where the Shark and the Snapper Roam

The pre-industrial American landscape was once rightly described as a place where...
March 2014
A coral has just spawned. Each of the hundreds of polyps releases a small pink bundle of sperm and eggs.
Personal Perspectives

A Tale of Sex and Stress in the Ocean

Welcome to Citizens of the Sea, a new blog series where ocean life comes to life....
October 2010
Carrie Bow Cay field station sits in the blue and turquoise waters of Belize.
Photo

Aerial View of Carrie Bow Cay Field Station, Belize

An aerial photo of Carrie Bow Cay and the Smithsonian research station looking...

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