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microscopic organisms of different shapes
Photo

Protists of the Atlantic

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a phytoplankton in a swirl
Photo

Phytoplankton

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Two nurse sharks hover over a baited cage
Lesson Plan

Jelly Critters: Gelatinous zooplankton

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Kelps are large, brown algae that grow along coasts around the world, especially in cooler regions.
Article

With Every Breath You Take, Thank the Ocean

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Scientists use a multinet to collect zooplankton.
Photo

Launching a Multinet

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Zooplankton are small—but do you know just how small? This drop of water smaller than the eye of a needle is magnified 20x and contains multitudes.
Photo

Zooplankton in the Eye of a Needle

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An arrow-worm from the genus Spadella. Alvariño discovered and classified the species Spadella gaetanoi in 1978.
Article

Ángeles Alvariño: Woman of Many Namesakes

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A female (top left) and male Photerus annecohenae. Note that females are larger than males (sexual dimorphism) and that males have bigger eyes.
Article

You Light Up My World!

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A large red research vessel among icy waters and snowy mountains
Article

Shipboard Life in the Antarctic

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A large, black instrument is hauled onto a ship's deck by researchers wearing hard hats and life vests.
Article

What the Big Picture Can Teach Us About Tiny Ocean Creatures

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A photo of a squid using bioluminescence to hide in the deep sea.
Overview

Bioluminescence

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Small red hyperiid.
Slideshow

The Hyper Eyes of Hyperiids: How Some Shrimp-Like Creatures See Light in the Deep Sea

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