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Have you ever seen a creature so unusual? This fish (22 cm long) is called a sea toad and studying them requires luck and the opportunity to descend into the deep waters where they...
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During the 2012 field season of the Deep Reef Observation Project (DROP) in...
Can painted wooden fish on a schoolyard fence change human behavior and help...
Extinction is a real possibility for three species of tunas. That’s one of the...

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The Palauan primitive cave eel ( Protanguilla palau ) has an evolutionary history that dates back some 200 million years . Because of this and the fact that it has retained some primitive features, scientists are recognizing it...
This bait ball shows how small fish can react when larger predators are near...
The whitish spots on this fish are individual parasitic trematode worms...

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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 Ocean Blog

The clearly pictured spines, rays and snout make identifying this longnose butterflyfish ( Forcipiger longirostris ), which was collected in French Polynesia in 2004, straightforward in this X-ray...
Whalefish mystery solved! The tapetail is the larva of the family. It transforms into either a male (bignose) or female whalefish. The family name is Cetomimidae .
For centuries, the Baltic Sea has provided European flounder ( Platichthys flesus ) and other fish for millions of people. Since the early 1980s, the nations surrounding the sea have coordinated...
Tuna caught in the Indian Ocean show the huge scale of commercial fishing. More about sustainable seafood can be found in our Sustainable Seafood feature story.
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 .
Editor's Note: See more information and details about the organisms displayed in the slideshow here . Researchers who come to Curaçao to take part in DROP ( Deep Reef Observation Project ) aren’t...
The goblin shark ( Mistukurina owstoni ) is one of the creepier fish out there! It has a long, prominent snout covered with special sensing organs (ampullae of Lorenzini) that help it to sense...
Scientists at the Smithsonian and partnering organizations have discovered a remarkably primitive eel in a fringing reef off the coast of the Republic of Palau . This fish exhibits many primitive...
The pre-industrial American landscape was once rightly described as a place where “the deer and the antelope roam.” On land, we take it for granted that the plant-eating deer and antelope far...
Two bright orange anemonefish ( Amphiprion ocellaris ) poke their heads between anemone tentacles. Anemonefish are able to swim amongst the stinging tentacles without getting stung — but no one knows...
Claws, spines, spikes, tentacles, and fangs. Aliens, monsters, and ghostly apparitions glowing in the night. Marine life forms have some of the best looks for Halloween—no costumes needed. From...
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...
The spotfin lionfish ( Pterois antennata ), with venomous spines extended, is native to Indo-Pacific reefs. Certain lionfish species have invaded reefs in Florida, the Caribbean and are moving up the...
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...
For nearly 35 years, National Geographic photojournalist Brian Skerry has been immersing himself in the big blue to get the perfect underwater photograph. He admits that there will never will be a "...
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...
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...
Starksia blennies, small coral reef fish with elongated bodies, have been well-studied for more than 100 years. But things are not always what they seem when it comes to fish. Using genetic analysis...
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