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Photo of sockeye salmon spawning.
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Sockeye Salmon, Adams River, British Columbia, Canada

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Red coral necklaces in a display window. Harvesting deep-sea coral to produce jewelry like this threatens these ecosystems.
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Coral for Sale

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A marine biologist measures the temperature of an ice core.
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Measuring Ice Core Temperatures

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“This shark was cruising low along the reef known as Alcyone. Her left eye was glancing up toward other hammerheads when I took this shot from below.” -- Nature's Best photographer, Alan Studley.Equipment Used to Capture the Shot: Nikon D300; Tokin
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Hammerhead Shark, Cocos Island, Costa Rica

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This Marine National Monument protects a chain of atolls and reefs 1,931-kilometers (1,200-miles) long.
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Northwestern Hawaiian Islands Marine National Monument

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DROP researchers successfully deploy a deep-sea ARMS at 396 feet using their submersible.
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Deploying ARMS in the Deep Reef

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But closer to the CO2 seeps, the complex reef has been replaced by a “monoculture” of boulder corals.
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Monoculture of Boulder Corals

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For three weeks, the MV Chertan is home-base for the scientific team and will be transformed in a laboratory to study the effect of the CO2 seeps on reefs.
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MV Chertain Lab Boat

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J. Murray Roberts studies and maps the cold-water corals known as Lophelia in the North Atlantic.
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J. Murray Roberts, Coral Scientist

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Smithsonian Scientists Dig a Trench Around a squalodontid Skull
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Expedition to Excavate a Fossil Whale

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A boat full of SCOPE drifters waits to release small, biodegradable buoys that will travel throughout the Gulf of Mexico and send GPS coordinates to researchers.
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SCOPE Buoys Help Track Oil

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Valentinni's sharpnose puffer lives on Indo-Pacific coral reefs, where it shoals in groups of 10-100 puffers and feeds on algae and tunicates.
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Valentinni's Sharpnose Puffer

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