Title photo by Johnny Chiou

This nudibranch, photographed at the top of a reef, looks like it's about to take off in flight.

Location: Kenting,Taiwan

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Above photo by Marchione Giacomo

An emperor shrimp shows off his symbiotic swagger by taking a ride on the back of this regal-looking nudibranch.

Location: Lembeh Strait, Indonesia

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Above photo by Francis Perez

This is a Glaucus atlanticus nudibranch who moves with the current and eat false jellyfish, Physalia physalis

Location: Tenerife, Canary Islands

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Above photo by Maurizio Pasi

Photograph of a vibrant nudibranch caring over its ribbon of eggs.

Location: Capo Noli, Italy

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Above photo by Lynn Wu

This tiny little nudibranch (Costasiella sp.) looks so cute. White head and black rhinophores; cerata green with reddish tips. It looks like a sheep stopped eating grass.

Location: Bali, Indonesia

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Above photo by Martin Klein

A beautiful nudibranch posing for the camera.

Location: Lembeh, Indonesia

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Above photo by Irwin Ang

Location: Anilao, Philippines

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Above photo by Filip Staes

This Nembrotha nudibranch was searching for food inside a tunicate vase.

Location: Lembeh/Sulawesi, Indonesia

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Above photo by Jett Britnell

An Opalescent Nudibranch, sometimes called a Flame Tip nudibranch, laying a ribbon of eggs.

Location: Browning Passage, British Columbia, Canada

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Above photo by Lynn Wu

This Chamberlain's Nembrotha nudibranch looks like a bull getting ready to charge at the photographer.

Location: Anilao, Philippines

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Above photo by Tom Radio

Nudibranch species: Hermissenda crassicornis

Location: Puget Sound, WA, United States

All images and info from here