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a man snorkels above a reef while a woman in flippers sits on a boat
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Sunscreen in the Environment

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Japanese scientists videotaped this female giant squid, alive, at the water's surface
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Giant Squid

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A harp seal in icy water
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Seals, Sea Lions, and Walruses

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Chrysaora melanaster is a jellyfish found in the Arctic.
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Jellyfish and Comb Jellies

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Corals, sponges, and algae are the major components of most coral reef communities as shown in this picture.
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Corals and Coral Reefs

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A thin layer of oil on the water's surface, reflecting rainbow colors
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Gulf of Mexico Oil Spill Milestones

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On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
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Sea Level Rise

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Great hammerhead in Bimini, Bahamas.
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Sharks

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A wave curls near the shore.
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American Spaces

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A sea turtle swimming
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Sea Turtles

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Two Adélie penguins on Paulet Island, Antarctica
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Penguins

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Two octopuses sitting underwater highlight the different textures the animals can take on.
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Octopuses, Squids, and Relatives

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