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a man with a hard helmet in a cave
Article

Adaptation in the Extremes: What Scale Worms Teach Us About Evolution

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The sea star Odontaster validus and sea urchin Sterechinus neumayeri are often found living in association with one another along the Antarctic coastline, here during the Census of Marine Life.
Overview

Sea Stars, Urchins, and Relatives

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This male dancing fiddler crab (Uca terpsichores) has built a sand “hood” at the entrance to his burrow, which he hopes will attract females to his humble abode—as if that big beautiful claw of his weren't enough!
Article

The Design of a Beautiful Weapon

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A Smithsonian specimen helped identify a new family of deep sea squid with long spindly legs.
Photo

Bigfin Squid

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Scientist Martha Nizinski examines a sample of the deep-sea coral Lophelia pertusa, collected 600-m (1,969-ft) deep off the coast of the southeastern United States.
Article

Martha Nizinski: Hooked on Deep-Sea Corals

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

Midwater Squid, Abralia veranyi

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the interior of an oyster shell with a pearl
Article

How Oysters Create the Ocean’s Gems

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A "dumbo" octopus is captured by an ROV.
Photo

Capturing a Deep-Sea Octopod

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Nine small invertebrates held on two fingers.
Photo

A Handful of Biodiversity

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Seagrasses don't just provide shelter for free-swimming animals, but also are a habitat for non-moving organisms, such as these sea anemones.
Photo

Anemone on Seagrass Blade

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Two bright orange anemonefish poke their heads between anemone tentacles.
Photo

Clownfish in their Host Anemone

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In 1874 Reverend Moses Harvey of Newfoundland displayed the giant squid he bought on the side of his barn, much to the dismay of Mrs. Harvey.
Photo

Rev. Harvey’s Giant Squid on Display

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