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A harp seal in icy water
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Harp Seal

Harp seals depend on seasonal ice during the breeding season. Their populations may...
A fur seal in kelp
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Fur Seal

 Warming climate, changing ocean chemistry, and overfishing threaten kelp forests...
A school of Atlantic bluefin tuna
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Atlantic Bluefin Tuna

 Endangered Atlantic bluefin tuna are caught in the wild and fattened in pens for...
A translucent pteropod swims freely in the open ocean with a black background.
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Shelled Pteropod

 Changes in ocean chemistry destroy the shelled pteropods that this “naked sea...
Phoenix Islands protected area
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Phoenix Islands

 Unlike most coral reefs, those of the Phoenix Islands are protected from pollution...
Photograph of a transparent polka-dotted squid in the dark ocean.
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Cockatoo Squid

 This transparent cockatoo squid (Leachia sp.), also known as a glass squid, lives...
Sea Turtle
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Green Sea Turtle

 A diet of algae and seagrasses gives this turtle (Chelonia mydas) greenish colored...