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Chrysaora melanaster is a jellyfish found in the Arctic.
Overview

Jellyfish and Comb Jellies

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A photo of a squid using bioluminescence to hide in the deep sea.
Overview

Bioluminescence

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a siphonophore
Video

Encounters with Bioluminescent Creatures

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Screenshot of "Sea Creatures from the Deep" video showing the teeth of an anglerfish.
Video

Sea Creatures from the Deep: A Video by National Geographic and the Census of Marine Life

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A screenshot from video showing glowing dinoflagellates being eaten by a barnacle.
Video

Glowing Dinoflagellate Meal

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“Upon returning from the reef after a night dive, I swam toward a bright reflection and came eye-to-eye with this beautiful, curious squid.” -- Nature's Best photographer Charles Viggers.Equipment Used to Capture the Shot: Nikon D700; 105mm ƒ/2.8 lens
Slideshow

Stunning Squid Pictures

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Very colorful array of jellyfish.
Video

Jellyfish predate dinosaurs. How have they survived so long?

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Photograph of the underside of a gelatinous octopus with a bright yellow bioluminescent ring around her mouth.
Slideshow

Bioluminescent Animals Photo Gallery

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This aptly named fish has two long fangs.
Slideshow

Creepy Critters: Marine Life Surfaces for Halloween

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This new species of lobster (Dinochelus ausubeli) is blind and has bizarre claws. It was discovered about 300 meters (984 feet) deep in the Philippine Sea by a Census of Marine Life expedition.
Slideshow

Deep Ocean Diversity Slideshow

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A shimmering bobtail squid.
Photo

Bobtail Squid Shimmers

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Photograph of the underside of a gelatinous octopus with a bright yellow bioluminescent ring around her mouth.
Photo

Bioluminescent Octopod

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