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Jellyfish are transparent and made up of 95 percent water, so you’d think there isn’t much to them. But you’d be wrong. Jellyfish are more complex than you’d think—and one of their most fascinating parts is their stinging cells.
Video

How Do Jellyfish Sting?

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A screenshot from the video with a map of sea level rise.
Video

Watching Rising Seas From Space

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A screenshot from the video showing collection of nets.
Video

Turning Nets Into Carpet

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Thumbnail of a cartoonish octopus.
Video

Why the Octopus Brain is so Extraordinary

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A screenshot from the video of Nancy Knowlton on PBS NewsHour.
Video

Where did Half of the Great Barrier Reef's Coral Go?

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Screenshot from video of a red whalefish swimming in the ocean.
Video

Whalefish Swimming in the Ocean

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Horseshoe Crab in Stage Harbor, Massachusetts
Article

This Flu Season, Thank a Horseshoe Crab

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Two clams, a mussel, an oyster, on a bed of algae
Article

Shellfish for Dinner: More than just Clams and Oysters

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A small, transparent, shell-less sea snail in the open ocean.
Article

Angels of the Sea

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Magellanic penguin parents typically lay two eggs under a bush or in a burrow, taking turns swimming out to sea to catch food for their chicks.
Article

Penguin Health Equals Ocean Health

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Two baby olive ridley sea turtles.
Article

Surveying Life On Sea Turtles

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Two coral trout swim on a reef in Fiji.
Article

Having Your Fish and Eating Them Too

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