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Snow on land can make some people grumpy, but the magical-looking flakes and a beautiful layer on the trees can turn even disenchanted adults into gleeful children again. But what is the ocean equivalent...
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Imagine: You’re in a small submersible, and you gently settle on the soft muddy...
Scientists describe the amazing bioluminescent creatures they encounter as they...
Imagine you’re an alien seeing Planet Earth for the first time. What do you see...

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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 bioluminescent photophores and other...
In the icy waters of the Arctic , a deep-water larvacean (aka “sea tadpole”...
Riftia tubeworm ( Riftia pachyptila ) colonies grow where hot, mineral-laden...

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You may have seen the sparkle of fireflies on a summer’s night. The fireflies produce light through a chemical reaction in...
See a few of the many species of deep-sea corals that have been discovered by scientists just since 2004. Learn about more deep-sea discoveries in our Deep-sea Corals article.
Giant squid have the largest eye in the animal kingdom. At up to 10 inches in diameter, people often describe it as the size of a dinner plate -- or, in other words, as big as a human head. Here,...
In Antarctica's Southern Ocean swims a beautiful polychaete (bristly worm) called Tomopteris carpenteri , which is adorned with alternating red and transparent bands. The largest species in its genus...
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...
Artist Shih Chieh Huang spent a good part of 2007 exploring specimens of deep-ocean animals found in the collections of the National Museum of Natural History . He was a Smithsonian Artist Research...
When a whale dies, the story has just begun. The massive carcass sinks to the seafloor, where it provides food for a deep sea ecosystem on the otherwise mostly barren seafloor. There are several...
This map shows where some of the most significant species of deep-sea corals are located. Learn more about the distribution and ecology of deep ocean corals in the article " Coral Gardens of the Deep...
Watch as a team of wave chasers heads to Somoa where they search for an undersea river five kilometers beneath the ocean's surface. There they measured skyscraper-sized internal gravity waves, which...
This lanternfish ( Diaphus sp .), found in the Red Sea, has light-producing photophores along its ventral surface (belly), and a nasal light organ that acts like a headlight. Hear scientists tell...
What happens to deep-sea coral samples after they are collected? In this image gallery, see some of the ways ocean scientists sort, measure, photograph, and study them. Learn more in the multimedia...
Flower-like zoanthids, relatives of coral, carpet a hydrothermal vent. This species of zoanthid is the first ever discovered at a hydrothermal vent. See more pictures of incredible deep sea diversity...
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...
Giant squid live up to their name: the largest giant squid ever recorded by scientists was almost 43 feet (13 meters) long, and may have weighed nearly a ton. You’d think such a huge animal would be...
Deep-sea coral beds are true biodiversity hotspots. It’s urgent that we study these extreme environments because we know so little about them, because they are important communities for so many deep-...
GEOMAR scientist Armin Form works at his lab during a long-term experiment on the effects of lower pH, higher temperatures and "food stress" on the cold-water coral Lophelia pertusa . In a previous...
The long barbel on the chin of this dragonfish ( Stomias boa ) has a glowing tip that may attract prey. With its large mouth and sharp, curved teeth, the fish makes quick work of any prey that...
This new species of lobster is blind—an adaptation to deep-sea life —and has very bizarre claws, or chelipeds. It was discovered about 300 meters (984 feet) deep in the Philippine Sea by a Census of...
Discover some amazing corals in this footage that shows and identifies a range of deep-sea coral species from the Juan de Fuca Canyon off the Olympic coast and the Davidson Seamount, an underwater...
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