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A decomposing sea star loses its grip on a rock.
Article

Sickly Starfish: A Q&A with Dr. Chris Mah

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A dive safety officer keeps a close eye on divers from the surface.
Article

Diving in the Middle of Nowhere

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A sea monster attacks a wooden ship
Article

The Enchanting Sea Monsters on Medieval Maps

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Thumbnail of Earth focused on Indonesia.
Video

Tsunami Science

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Swimmers brave the waters in the shadow of a coal-fired power plant. Coal plants like this one emit CO2 into our atmosphere which is warming the planet and altering the chemistry of the ocean.
Overview

Climate Change

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Pearl oysters create pearls when a hard particle is coated with calcium carbonate (nacre) after entering the oyster.
Photo

Pearls of Wisdom

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In 2011, storms and lack of ice-cover due to a warmer winter climate resulted in hundreds of seal pups being washed up on the shore of Prince Edward Island. Like many, this young seal faced an uncertain future. See more Nature's Best Photos.
Photo

Harp Seal, Prince Edward Island National Park, Canada

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This aptly named fish has two long fangs.
Photo

Fangtooth Fish

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Can we use the sea as a source of fresh water?
Photo

Can We Drink Our Salty Ocean?

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The giant pacific octopus can grow up to 600 pounds!
Photo

Revealing the Largest Octopus

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Two of the worlds largest jellyfish, the lions mane jellyfish, float together.
Photo

Extreme Jellyfish

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