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The open ocean is surprisingly barren to the naked eye. Every now and again you will encounter a school of fish and their attendant predators, but most of the life that you find is...
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Everyone knows what a fish is: from a pet goldfish to a wild sunfish, fish are...
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As a consumer, you can choose what kinds of seafood to buy. Some species are in...
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A few years ago, I was in New Zealand photographing a story about the value of...

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A master of disguise, the pygmy seahorse ( Hippocampus bargibanti ) grows to only 2cm in length and matches the gorgonian coral that it lives on. The pygmy seahorse is so successful at hiding that it was not found until its home...
Imagine if a fish at the market could tell you where it came from; what...
Just like other seahorse species, male weedy sea dragons are the ones to get...

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Scientists in the Division of Fishes at the Smithsonian's National Museum of Natural History use X-ray imaging to study the...
Healthy coral reefs support a mindboggling array of life. Here, at Rapture Reef in the Northwestern Hawaiian Islands, colorful fishes throng the waters for as far as the eye can see.
The pinecone fish ( Monocentris japonicus ) looks like the real thing on land—covered in large scales with a dark trim. They are found lurking in caves and under ledges in the Indian and Western...
An Arctic cod rests in an ice-covered space. View the “ Under Arctic Ice ” photo essay.
Starksia blennies, small fish with elongated bodies, generally native to shallow to moderately deep rock and coral reefs in the western Atlantic and eastern Pacific oceans, have been well-studied for...
Bioluminescence is one of the more captivating adaptations that have evolved in marine animals. It's the ability of organisms to create and emit light. Dive underwater and you may witness lightshows...
So far, researchers have developed DNA barcodes to accurately identify 4,600 of the more than 29,000 known fish species. Atlantic cod is an economically important fisheries species. However, it's...
A master of disguise, the pygmy seahorse ( Hippocampus bargibanti ) grows to only 2cm in length and matches the gorgonian coral that it lives on. The pygmy seahorse is so successful at hiding that it...
When we think "Africa," we think of the "Big Five"—lions, elephants, leopards, buffalo and rhinos—that crisscross the African Savannah. Few would imagine that there could be more natural beauty on...
There are about 4 million specimens in the fish collection housed at the National Museum of Natural History . It is the largest of its kind in the world. Learn how these collections helped to solve...
Is that fruit swimming in the ocean? Well it may look like fruit, but it's actually a pineapplefish ( Cleidopus gloriamaris ). Like the hard outer part of a pineapple, this fish also has an outer...
Arctic cod have a special protein that keeps their blood from freezing in ice-cold Arctic waters.
Follow a journey with satellite tags placed on bull sharks and tarpon. Both of these large predatory fish are found in coastal in-shore ecosystems and the two species have similar diets. If given the...
The rich colors of emperor angelfish make them a vibrant version of royalty. They are curious fish that will come and greet their human visitors. However this unique coloring is not shared with all...
Boats Connect Us to the Ocean More than any other objects, boats symbolize human connection to the ocean. As you look through the center of the Ocean Hall, past the model right whale , you can see a...
This mysterious deep sea creature , which has an unusual bulge on its snout, grows to only about 68 mm (2.7 in) long. It lives deep in the ocean, like the whalefish . Find out how this fish was part...
The long toothy rostrum or “saw” gives sawfish their common name. They use the saw to dig in the sand for crustaceans or to attack prey by vigorously slashing from side to side. This smalltooth...
Dr. Carole Baldwin never expected to find seven new species of fish among the Starskia blennies she was studying at the Smithsonian's National Museum of Natural History. "My research team was using...
The Eastern cleaner-clingfish ( Cochleoceps orientalis ) has its job title in its name: “cleaner.” They prove invaluable to larger fish by removing parasites to keep the larger fish clean and healthy...
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