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Superheated magma slowly leaks from a crack in the seafloor.
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Superheated Magma Underwater

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Beautiful crab water colors
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Trapezia Crabs Watercolors

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Hawksbill turtles (Eretmochelys imbricata) are small to medium-sized turtles, but can get as large as 200 lbs (91 kg). Adults live among healthy coral reef communities, feeding primarily on sponges, but they also eat other invertebrates like sea cucumbers,
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Hawksbill Turtle

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The head of a turtle-headed sea snake.
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A Turtle or a Sea Snake?

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This nudibranch is making a comeback to a location it hasn't been to in years along the California coast. First discovered off the coast of Southern California in 1902, Felimare californiensis was thought to be extinct in the region sin
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The Comeback Sea Slug

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Pelicans Roost at oil spill "ground zero" two years later.
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Pelicans Roost at Oil Spill "Ground Zero"

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A blue cod and sea pens, a unique type of cnidarian, speckle the seafloor in New Zealand's Fiordland region.
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Blue Cod Amongst Sea Pens

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Two California market squids mate in the waters off of California's Channel Islands.
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California Market Squid

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Amanda Feuerstein with a nesting olive ridley (Lepidochelys olivacea). Feuerstein is a co-author of a study that surveyed algae, crustaceans, mollusks, and other epibionts that live on the turtles in the Pacific Ocean.
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Searching for Life -- Epibionts -- On Sea Turtles

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A yellow remotely operated underwater vehicle, or ROV, at the surface of the water.
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An ROV Explores the Baltic Sea

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A close-up photo of Killer Algae, Caulerpa taxifolia, a seaweed that has proven to be a successful invasive species.
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Killer Algae (Caulerpa taxifolia)

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Image of a rapa whelk, a large marine snail retreated into its shell
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Rapa Whelk

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