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Scientists describe the amazing bioluminescent creatures they encounter as they descend into the deep--siphonophores, ctenophores, and viperfish--in this Smithsonian/History Channel "Deep Ocean Explorers" video excerpt. If you like this video, watch the full 14-minute...
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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Everyone knows what a fish is: from a pet goldfish to a wild sunfish, fish are...

LATEST CATCH

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 commonly for the camera but is also...
Starksia blennies, small fish with elongated bodies, generally native to...
These candy cane snapping shrimp ( Alpheus randalli ) have a pretty nice set...

DIVE DEEPER

Scientists in the Division of Fishes at the Smithsonian's National Museum of Natural History use X-ray imaging to study the...
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...
The whale shark ( Rhincodon typus ) is the largest fish on Earth. They spend most of their lives in the deep water up to 200 meters or more, but swim up to the surface to gather food and warm their...
Scientists in the Division of Fishes at the Smithsonian's National Museum of Natural History use X-ray imaging to study the complex bone structure and diversity of fish. This image gallery showcases...
For centuries, the Baltic Sea has provided European flounder ( Platichthys flesus ) and other fish for millions of people to consume. Since the early 1980s, the nations surrounding the sea have...
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...
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...
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 .
Pearlfish are slender, eel-shaped fish that often live inside various invertebrates including sea cucumbers. Because a sea cucumber breathes by taking in water through its anus, a pearlfish can wait...
Smithsonian researchers collected a cave basslet ( Liopropoma mowbrayi ) from the deep reefs of Curaçao , in the southern Caribbean. They used a state-of-the-art submersible to obtain the specimen...
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...
This is an unidentified moray eel , collected from 650 feet off the coast of Curacao. Morays are very secretive animals that tend to stay hidden in caves and crevices. Researchers with the Deep Reef...
A wrought iron butterflyfish , Chaetodon daedalma , being cleaned by a small wrasse in the waters of Japan's Ogasawara Islands.
This deep sea creature, the whalefish ( Cetomimidae ), has a whale-like body, a gaping mouth, no fins or scales and a deep lateral line, which detects vibrations in the water. The first specimens...
Arctic cod have a special protein that keeps their blood from freezing in ice-cold Arctic waters.
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...
“Every four years, sockeyes come inland from the Pacific to spawn. The year 2010 was the largest run in 100 years, reaching more than 30 million fish. On this day, I waited for the right sunlight,...
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