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This female hyperiid (Phronima sedentaria), a type of marine crustacean, is surrounded by her young inside the hollowed out barrel-shaped body cavity of a salp.

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Extreme Parenting

March 2016

A PIV image of a moon jelly and its wake.

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PIV Image of Moon Jelly

July 2015

The vicious "killer shrimp."

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Dikerogammarus villosus

February 2015

Field experiments conducted by the Zostera Experimental Network (ZEN) explored seagrass biodiversity.

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ZEN Research

January 2016

Hastigerinella digitata's many spines support sticky, hair-like “fishing lines” made from cytoplasm (the living part of a cell – mostly fluid, salts and proteins) that entangle prey.

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Tiny, but Deadly

March 2016

These shrimp-like crustaceans called Gnathophausia are incredibly hardy and only need to eat every few months.

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Intense Fasting

March 2016

In this photo, the jellyfish Pandea rubra may have been surprised by a camera light or in a defensive state, causing it to contract its red mantle and reveal its complex muscle anatomy.

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Red Paper Lantern Jellyfish

March 2016

This young Gonatus squid is still translucent, making it tricky for predators to spot it.

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Deep Sea Squid

March 2016

Cystisoma (a type of hyperiid crustacean) has one huge pair of eyes.

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Giant Eyes

March 2016

Corolla moves through the water by flapping a wing plate nearly twice the size of its gelatinous shell, giving it the nickname “sea butterfly”.

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Sea Butterfly

March 2016

Tomopteris's bristles produce yellow bioluminescence, a unusual color among midwater animals, nearly all of which make some sort of light.

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Glow Worms

May 2016

An illustration of two great auks.

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Extinct Great Auk

January 2017