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Jul 9 2012 - 9:33am
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 exactly sure how. One dominant theory explains that they have a protective slime coating their...
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Jun 22 2012 - 10:13am
A blue cod and sea pens, a unique type of cnidarian, speckle the seafloor in New Zealand's Fiordland region.You can see more beautiful underwater photos from Brian Skerry in his image gallery.
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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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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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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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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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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 6 2011 - 2:45pm
A cnidarian brought up from the Arctic seafloor more than 2000 meters (6562 feet) deep.
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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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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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Mar 18 2011 - 1:03pm
A still from The Changing Sea, part of the 19th Annual Environmental Film Festival in the Nation's Capital.
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Jan 26 2010 - 11:46am
If you don’t like purple, you can look for this anemone (Condylactis sp.) in green. It comes in different colors and brightens a variety of Caribbean reef habitats, from lagoons to deeper waters.
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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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