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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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This aptly named fish ( Anoplogaster cornuta ) has long, menacing fangs, but the adult fish is small, reaching only about 6 inches (17 cm) in length. It's teeth are the largest in the ocean in proportion to body size, and are so...
The Sargassum frogfish Histrio histrio (Antennariidae) is a small but...
The Pacific hagfish ( Eptatretus stoutii ), a fish that looks similar to an...

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By Lindsay Aylesworth, Project Seahorse The day I stepped into my wetsuit, donned my mask, and embarked on my first scuba...
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...
The longsnout seahorse ( Hippocampus reidi ) can be found near seagrasses, corals, sargassum and mangroves . These seahorses usually are between three to seven inches tall and could be threatened...
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...
The ghoulish “blob sculpin” ( Psychrolutes phrictus ) , a deepwater fish found off the Pacific coast of the U.S. from the Bering Sea to Southern California, can grow to about 70 cm (more than two...
These statistics come from a United Nations Food & Agriculture Organization 2007 review of the status of global fish stocks. Learn more in our Sustainable Seafood section .
Frogfish are skilled hunters and some species are capable of blending into local environments such as coral reefs . A frogfish can camouflage itself so well that prey fish will swim close by without...
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...
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...
Cardinalfish ( Cheilodipterus sp. ) dads do their part to protect their eggs by gingerly carrying them in their mouths. However, the dads could easily swallow the whole bunch in one gulp! To keep her...
A parrotfish ( Chlorurus sordidus ) creates a mucus cocoon to protect it from parasites, like bloodsucking isopods , while it sleeps. Read more from the Citizens at Sea blog .
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...
In 2003, a team of Japanese scientists analyzed the DNA of tapetails and whalefish. The results suggested that these two very different looking fishes were almost identical in one specific gene. But...
The sargassum fish ( Histrio histrio ) is a member of the frogfish family (Antennariidae) and typically lives in open waters near floating sargassum seaweed, which offers camouflage. Although capable...
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...
The twin-spot snapper ( Lutjanus bohar ) is one of the more curious predators in the central Pacific, says marine ecologist Stuart Sandin of the Scripps Institution of Oceanography. "It poses...
The waters of New Guinea teemed with exotic fishes and crabs, which were faithfully depicted by William Dampier’s artist. When Dampier’s book A Voyage to New Holland was published in 1703,...
“ This moray eel was resting among some hard coral and was mesmerized by my dive lights, making it a very cooperative subject. The moray eel rhythmically opens and closes its mouth to move water...
A wrought iron butterflyfish , Chaetodon daedalma , being cleaned by a small wrasse in the waters of Japan's Ogasawara Islands.
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