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Mar 22 2013 - 9:28am
This rare staurozoan, or stalked jellyfish (Haliclystus californiensis) is about 2 centimeters in length and was collected off the coast of California. Unlike the traditional bell-shaped floating jellyfish, staurozoans live attached to rocks or other hard surfaces and mostly live in cold water...
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Mar 22 2011 - 10:24am
A still from Journey of the Universe, part of the 19th Annual Environmental Film Festival in the Nation's Capital.
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Jan 26 2010 - 11:46am
More desirable fish species like tuna, bass, and swordfish are being fished out, leaving us with species lower on the food chain—like jellyfish. Could this burger show up on lunch menus one day soon?
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Apr 26 2011 - 1:47pm
The Encyclopedia of Life and Atlantic Public Media bring us a new installment of the podcast, One Species at a Time. Vacuumed up from its habitat a mile down in the ocean, the red paper lantern jelly may not look like much. Mostly water, it’s so fragile that once brought to the surface it...
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Jan 6 2011 - 1:03pm
Atolla tenella, a midwater scyphomedusa, as seen under a microscope. View the “Under Arctic Ice” photo essay to learn more.
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Apr 17 2010 - 12:00pm
A cameraman navigates a smack of sea nettles (Chrysaora fuscescens) in Monterey Bay. A group of jellies is known as a "smack."
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Aug 1 2012 - 1:49pm
Light refracts off the comb-rows of the Mertensia ovum, a ctenophore, producing stripes of rainbow colors. The jelly eats copepods and small crustaceans that become stuck to its sticky tentacles.
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Apr 2 2010 - 12:16pm
In this episode of the Podcast of Life, learn how three fiery, painful stings during an early morning swim in Hawaii changed the life of researcher Angel Yanagihara. Once the young biochemist had recovered from her box jelly encounter, Carybdea alata had her full attention. Now she works to unlock...
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Apr 18 2013 - 10:35am
Like this ctenophore (Aulococtena acuminata), many animals that live in the midwater zone are red—making them almost invisible in the dim blue light that filters down from the sea surface. This small comb jelly snares prey with its two short tentacles.
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Jan 6 2011 - 12:33pm
Found in the icy waters of the Arctic, Comb Jellies, or ctenophores like this one, of the Aulacoctena genus, are poorly known animals. With extremely fragile bodies, they are difficult to capture intact.
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Oct 2 2012 - 10:09am
These large jellyfish (Chrysaora fuscescens) are most commonly found along the coasts of California and Oregon. (They're also popular in the displays of public aquaria.) Their bells can grow to a diameter of around 1 foot (30 cm), with red stinging tentacles and oral arms extending far below....
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Nov 29 2010 - 6:48pm
All over the world, people have been witnessing gigantic blooms of tens of thousands of jellyfish where once there were only a few. Fishers find them clogging their nets and costing them dearly. In Japan, giant jellyfish capable of reaching six feet across even capsized a boat that tried to bring...
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Jan 7 2011 - 3:53pm
Using an ROV (Remotely-Operated Vehicle) equipped with a high-definition video camera, scientists can observe the life that flourishes beneath the Arctic ice. On this expedition, they discovered creatures, like this Narcomedusa jelly, that were previously unknown.
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May 2 2013 - 9:29am
This venomous box jelly (Chiropsalmus quadrumanus) was collected off the coast of South Carolina. The specimen now resides in the Smithsonian’s marine collection. It's venomous sting can be lethal, especially to small children.
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Apr 12 2013 - 11:29am
How long have jellyfish lived in the ocean? This jellyfish fossil is from the Cambrian period, more than 500 million years ago. It was found buried in Utah—an area that used to be underwater, covered by the ocean. Fossil jellyfish are rare because they have no bones or other hard parts to turn into...
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Aug 18 2010 - 4:44pm
Marine biologists from MBARI nicknamed this startlingly large jellyfish—which grows over one meter (three feet) in diameter—"big red." It would be hard to miss, except that it lives at depths of 650 to 1,500 meters (2,000 to 4,800 feet). Big red uses four to seven fleshy "feeding arms" instead of...
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Aug 26 2010 - 10:28pm
Depending on whom you talk to, jellyfish are either fascinating, a nuisance, a toxic menace, or some combination of the above.
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Sep 17 2012 - 9:18am
Alien-looking creatures like this deep-red jellyfish (Crossota norvegica) swim in the Arctic Sea. Learn more about Arctic sea life in our Under the Arctic Ice story, or at the home page for the Arctic Ocean Diversity project. And learn more about jellyfish!
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Aug 18 2011 - 4:24pm
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 of red, green, and blue. Chemical reactions release energy that produces the light. Many species use...
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May 25 2010 - 4:48pm
Sea jellies such as this one in the genus Benthocodon are commonly seen on or near the seafloor in the Monterey Canyon off central California. Some jellies in this genus feed on animals that live in seafloor sediment. Learn more about life in the deep sea in the Deep Ocean Exploration section.
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Jun 18 2012 - 9:37am
Chrysaora melanaster, one of the largest jellyfish commonly found in the Arctic, swims underneath the Arctic ice. Its tentacles can stretch to more than 3 meters long and pack a mean sting for humans.
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Oct 16 2012 - 9:53am
Many expeditions in the Arctic reveal new species, such as this jellyfish Bathykorus bouilloni, which, strangely, has only four tentacles! Dr. Kevin Raskoff from California State University, Monterey Bay first captured one in the deep Arctic in 2002 and thought it was rare.
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Jul 15 2011 - 4:51pm
"Inside the Open Ocean: Blue Water Diving" produced by Woods Hole Oceanographic Institution (WHOI), describes a specialized diving technique that lets biologists study the ocean's most fragile beings--soft, transparent animals such as jellyfish that are crushed by traditional tools such as plankton...
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Jan 26 2010 - 11:45am
A fringe of short tentacles surrounds the flattened bell of this tiny, transparent jellyfish (Halicreas minimum), which can be found at depths up to 984 feet (300 meters). But it would be hard to spot: the bell grows up to just 4 centimeters (2 inches) across! See more deep ocean diversity and...
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