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Two new species of sea stars were discovered in the deep sea: Paulasterias tyleri (on the left) in a North Pacific hydrothermal vent community, and Paulasterias mcclaini (on the right) in the deep sea off the coast of Antarctica.
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Two New Sea Stars

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With seven pairs of legs, nine eyes, and shells the shape of flying saucers, horseshoe crabs look like aliens from the deep.
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Horseshoe Crab from Thailand

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The whitish spots on this fish are individual parasitic trematode worms.
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Parasitic Worms in a Fish

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The elusive giant squid
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Reflections on the Successful Search for the Giant Squid

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The siphonophores are an order of marine animals in the phylum Cnidaria (the same phylum containing jellyfish). 
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Prints from Ernst Haeckel

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A brown-colored deep-sea coral sits on the deep ocean floor and is covered with brown oil floc.
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Anemone On Deep Sea Coral

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Photograph of a translucent red-orange comb jelly against a black sea.
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Red Mid-Water Comb Jelly

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A deep-sea octopod wraps itself around a submersible’s robotic arm in the Gulf of Mexico.
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Octopod on Submersible Arm

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Turbinolia stephensoni
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Smallest Coral Species

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Forams are tiny single-celled organisms.
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Foraminifera

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Winner of the ‘best camoflauge’ contest, the nudibranch Scyllaea pelagica is betrayed only by motion.
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Seaslug Camouflages in Seaweed

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Image of two white sea shells with spirals.
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Sanibel Island Shells: One Species at a Time

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