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An illustration of a deep-sea dragonfish.
Photo

Deep-Sea Dragonfish

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The long barbel on the chin of this dragonfish has a glowing tip that may attract prey.
Photo

Scaly Dragonfish

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Photograph of the underside of a gelatinous octopus with a bright yellow bioluminescent ring around her mouth.
Slideshow

Bioluminescent Animals Photo Gallery

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A photo of an anglerfish
Photo

Sea Toad

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Jaw of the goblin shark
Photo

The Goblin Shark

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A photo of a sea toad specimen.
Article

A Sub and a Sea Toad

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Tropical hatchetfish, like the one shown in this X-ray photograph, live in the dark depths of the ocean. Like many other deep-sea fishes, they have large eyes and bioluminescent spots on their bellies.
Photo

X-Ray Image of a Tropical Hatchetfish

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The fluorescent shortnose greeneye fish.
Photo

A Shortnose Greeneye Fish Aglow

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Two nurse sharks hover over a baited cage
Lesson Plan

Light at the Bottom of the Deep Dark Ocean

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A red deep-sea fish specimen.
Article

The Whalefish Mystery

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

Bioluminescence

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