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Salmon are one of the most widely loved varieties of seafood in the world. A ubiquitous alternative to meat and poultry, salmon wear a halo of healthfulness, as they are rich in protein and...
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Bioluminescence is one of the more captivating adaptations that have evolved in...
Scientists describe the amazing bioluminescent creatures they encounter as they...
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The open ocean is surprisingly barren to the naked eye. Every now and again you...

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The Pacific hagfish ( Eptatretus stoutii ), a fish that looks similar to an eel, has no jaw and is totally blind. They find food, often dead fish, through a specialized sense of smell and, because they can absorb nutrients...
By diving in the Curasub, Smithsonian researchers with the Deep Reef...
The long barbel on the chin of this dragonfish ( Stomias boa ) has a glowing...

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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...
A tiny yellow goby, Lubricogobius exiguus , living inside an abandoned can on the seafloor; Suruga Bay, Japan
This rarely-seen smalleyed rabbitfish ( Hydrolagus affinis ), belonging to the order of Chimaera, was caught during a research trip to the Mid-Atlantic Ridge in 2004 sponsored by the Census of Marine...
Are these three fish related? All three—a whalefish, bignose, and tapetail—became the prime suspects in an international scientific mystery. Each species seemed to be missing either a member of the...
Deep-sea species like this dragonfish ( Bathophilus indicus ) live in cold, dark waters and may go weeks or months between meals. When food is found, the fish uses its impressive teeth—including some...
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...
The deep-sea dragonfish ( Stomiidae ), also called the barbeled dragonfish, uses it's fang-like teeth to grab prey in its deep-sea environment . Like other deep-sea organisms, dragonfish have...
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...
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...
Since the dawn of seafaring, humankind has had to deal with the pesky creatures that settle on ships—seaweeds, barnacles, and others that take advantage of the empty real estate provided by a clean...
This offshore cage is stocked with 70,000 Pacific threadfin ( Polydactylus sexfilis ), or moi. Aquaculture can provide a sustainable way to satisfy the demand for this Hawaiian delicacy, once...
The Census of Marine Life - a ten-year effort by scientists from around the world to answer the age-old question, “What lives in the sea?” It was an international effort to asses the diversity,...
Extinction is a real possibility for three species of tunas. That’s one of the messages from a new study released today online in the journal Science . Researchers assessed the range and populations...
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 corkwing wrasse, or gilt-head, changes color depending on its age, sex, and breeding season. For instance, during the breeding season, males have blue spotted fins and the middle of their scales...
Largely due to overfishing, the Southern Bluefin Tuna is listed as " critically endangered ." If its population continues to decline, the species faces the possibility of extinction. It's not alone...
Blackdevil fish ( Melanocetus johnsonii ) are quintessential monsters from the deep . The female lurks in the dark, drawing in prey with her glowing lure, while the male attaches to her like a blood-...
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...
A Tapetail is caught on film while swimming over a coral reef off the coast of Japan. Learn more about this unusual organism -- and how it was used to solve a taxonomic mystery .
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