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In the spring of 2011, a research crew from Oceana spent two months in the brackish Baltic Sea . The Baltic faces challenges from pollution, algae blooms, over fishing, and invasive species. Oceana researchers...
Boats Connect Us to the Ocean More than any other objects, boats symbolize...
CREDIT: Wikimedia User “Fisherman” Because of consumer demand for sashimi (a...
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Have you ever seen a creature so unusual? This fish (22 cm long) is called a...

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The Sargassum frogfish Histrio histrio (Antennariidae) is a small but voracious predator - it can ingest animals up to it’s own size! The fins of the frogfish are perfect for creeping around in the algae and stalking unsuspecting...
The Pacific hagfish ( Eptatretus stoutii ), a fish that looks similar to an...
Under white light, this shortnose greeneye fish ( Chlorophthalmus agassizi...

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Dr. Carole Baldwin never expected to find seven new species of fish among the Starskia blennies she was studying at 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...
From parrotfish that cover themselves in a blanket of their own mucus to tiny pygmy sea horses, there are some bizarre sea creatures that live in coral reefs . In this slideshow you can explore some...
A pair of French Angelfish ( Pomacanthus paru ) swim off the coast of Brazil. This species demonstrates a rare quality among ocean fish: mating pairs appear to spend extended time together, defending...
Some fish you can fry up in the pan, no questions asked. Others require a bit of research. Case in point: the puffer fish. Commonly known as fugu, some species contain toxins more deadly than cyanide...
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...
by Emily Frost CREDIT: Kevin Rolle Albatrosses Get ‘Romantic’ to Increase Chick Survival Albatross relationships seem especially relatable to humans. These long-lived and highly-endangered birds will...
This photograph, much like Van Gogh’s Starry Night is awhirl with the colors and swishes of hundreds of fish. The focal point, however, is the lionfish. Lionfish ( Pterois antennata ) have been known...
If youngsters get cared for at all, the mother is usually involved. But in fish and a few other groups where eggs are not abandoned, fathers are the primary care providers. Males are sometimes such...
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 .
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...
Lionfish, or Pterois , are a deadly type of fish that live around reefs, although they are native to the Indo-Pacific region. These fish have been known to be invasive, and with no natural predators...
Two large coral trout ( Plectropomus leopardus ) swim through a coral reef on Taveuni Island in Fiji. Coral trout are highly desired fish for human consumption, and because of overfishing, are...
Can painted wooden fish on a schoolyard fence change human behavior and help clean up the ocean for the real salmon? Stream of Dreams in British Columbia thinks so, and a lot of wooden fish and some...
You never know where following your passions can take you. I came to the Smithsonian's National Museum of Natural History (NMNH) two years ago as a research intern after graduating with a Bachelor’s...
The ocean is home to many moms of all shapes and sizes: from charismatic polar bears and dolphins to small fishes and shrimps and more. Learn about some of the diverse parenting habits of marine moms...
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. Gill arches support the...
With gnarled teeth and a perpetual frown, the sea wolf is a creature out of our nightmares! But despite its fearsome look, it isn't a danger to humans, largely preying on whelks, crabs, and sea...
A rockfish finds refuge in a deep-sea coral—a red tree coral of the Primnoidae family in the Olympic Coast National Marine Sanctuary. Learn more about deep-sea coral reef ecosystems in our Deep-sea...
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