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By pumping enormous test tubes that are 60-feet deep and hold almost 15,000 gallons of water with carbon dioxide to make the water inside more acidic, researchers can study how zooplankton, phytoplankton and other small organisms will adapt in the wild.
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Studying Acidification in the Field

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A couple inches wide and up to ten feet long, the bobbit worm stays hidden under tropical sands with just its five antennae poking out—waiting for prey to swim by.
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The Bobbit Worm

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Jaw of the goblin shark
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The Goblin Shark

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Syllid fireworms can be found mainly on the seafloor, but they switch to a planktonic form to reproduce, where the females use bioluminescent signals.
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Syllid Fireworms

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A beluga whale
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Baby Beluga

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A side-view of translucent hyperiid with a black background.
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Cystisoma

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Twin-spot snappers are curious top predators on Pacific coral reefs, eating a variety of fishes, shrimps, crabs, and snails among others, and are usually around 2.5 feet long.
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Curious Bohar

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Hagfish Slime Thread
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Spin Hagfish Slime into Silk

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This tentacle belongs to a blue button. While it has a central “float” with streaming tentacles like typical jellyfish, the blue button is a colony of many small hydroid animals.
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Blue Button Tentacle

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Illustrations of radiolarians from Ernst Haeckel.
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Radiolarians

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Haeckel discovered a species of rhizostome jellyfish in Bellagemma, Ceylon, in December 1881. Its form so impressed him that he used it as a model for ceiling decorations in his Villa Medusa home in Jena.
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Rhizostome Jellyfish

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Sand dollars (like those pictured in this set of illustrations) are flattened, burrowing sea urchins. Dead, sunlight-bleached specimens resemble silver coins, hence their common name. These figures portray a sand dollar’s lifecycle from larva to adult.
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Sea Urchins

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