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A bluefin trevally swims in Hawaii’s Maro Coral Reef, part of the Papahānaumokuākea Marine National Monument.
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
Small red hyperiid.
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
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
Mangrove roots provide an underwater habitat for many marine species.
slideshow

Mangroves: Photos of Plants and Animals

Mangrove is the name for a tree—and also for a complex ecosystem—that bridges...
Mon, 09/29/2014 - 11:48
A red and orange tomopterid with a black background.
Photo

Tomopterid

Tiny sponge spicules.
Photo

Sparkling Sponge Spicules

These sparkling sponge spicules are microscopic needle-like structures that many...
In the X-ray image of this Viper Moray Eel (Enchelynassa canina), note the second set of jaws in the “throat”; these are the gill arches, which are present in all fish.
Photo

X-Ray Image of a Viper Moray Eel

In the X-ray image of this Viper Moray Eel (Enchelynassa canina), note the second...
Blue-spotted stingrays use the help of cleaner fish to stay clean and healthy.
Photo

Blue-spotted Stingray

The blue-spotted stingray (Taeniura lymma) doesn’t like to be covered in sand...
A school of Hawaiian squirrelfish.
Photo

A School of Hawaiian Squirrelfish

Check out the eyes on these Hawaiian squirrelfish (Sargocentron xantherythrum)!...
This purple urchin Paleopneustes cristatus is seldom seen by itself, and can be found in groups of hundreds.
Photo

Purple Sea Urchin

This purple urchin Paleopneustes cristatus is seldom seen by itself, and...
An unidentified moray eel held in researcher's hands.
Photo

A Baby Moray Eel, or a Really Small Adult?

This is an unidentified moray eel, collected from 650 feet off the coast of...
The branches of a primnoid coral in the genus Calyptrophora provide a habitat for galathaoid crabs.
Photo

Primnoid Coral

The branches of a primnoid coral in the genus Calyptrophora provide a habitat for...

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