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Photograph of a many-armed sea star with maroon and white feathery-looking arms, with a deep red sea fan in the background.
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Feather Star

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A tongue-like organ called the radula rams food down the giant squid's throat.
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Giant Squid Beak and Radula

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A red snapper hunts for prey on Kingman’s Reef, a healthy reef in the Line Islands.
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Kingman’s Reef, Line Islands

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Dr. Mahmood Shivji uses DNA techniques to identify shark fins confiscated from fishermen
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FORENSIC FINS: Using DNA to Prosecute Shark Poachers

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Dr. Karen L. McKee collects a peat core in a mangrove forest in Belize.
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Dr. Karen L. McKee Studies Mangroves

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A mangrove tree crab clings to a leaf near a Smithsonian marine laboratory in Panama.
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Mangrove Tree Crab

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Hundreds of illustrated red crabs gathering on sand with Santa hats.
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Santa Claws is Coming to Town

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Where the pH is the lowest, corals can no longer grow - sand, rubble and seagrasses replace the reef.
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Lonely Seagrass in Acidic Waters

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Turbinolia stephensoni
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Smallest Coral Species

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Photograph of an oiled brown pelican squatting on the beach.
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Brown Pelican covered in oil from the Deepwater Horizon spill

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Polar bears are threatened by a lack of sea ice.
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Polar Bears on "Thin" Ice

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a diagram of heat flow in a turtle's flipper
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Counter-current Heat Exchange

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