<p>These little sea slug cuties are one of 3000 known species of nudibranchs. Their crazy coloring comes from the food they eat. (See more nudibranchs in our <a href="http://ocean.nationalgeographic.com/ocean/photos/nudibranchs/#/nudibranchs03-philippines_18173_600x450.jpg">nudibranch gallery</a>).</p>

Clowning Around

These little sea slug cuties are one of 3000 known species of nudibranchs. Their crazy coloring comes from the food they eat. (See more nudibranchs in our nudibranch gallery).

Photograph by David Doubilet, Nat Geo Image Collection

You Call That Cute? Here Are 10 Surprisingly Cute Critters

When it comes to cute animal pictures, National Geographic is sitting on a gold mine.

A #CuteOff hashtag trending on twitter had scientists vying this week to post the cutest critter picture online. Researchers grouped themselves into taxonomical teams, nominating champions for #TeamMammal, #TeamHerpetology, and more. Even #TeamExtinct made a showing.

Not all of these lovable creatures are as big-eyed and fuzzy as you’d expect. So we’ve picked 10 of our own surprising cuties for a gallery.

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