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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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This aptly named fish has two long fangs.
Photo

Fangtooth Fish

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a siphonophore
Video

Encounters with Bioluminescent Creatures

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A photo of a sea toad specimen.
Article

A Sub and a Sea Toad

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

Bioluminescence

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Screenshot of "Sea Creatures from the Deep" video showing the teeth of an anglerfish.
Video

Sea Creatures from the Deep: A Video by National Geographic and the Census of Marine Life

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The ultra-black Pacific blackdragon forms a circular shape with its body.
Article

Scientists Find First Ultra-Black Color in Deep-Sea Fishes

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Jaw of the goblin shark
Photo

The Goblin Shark

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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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A close up profile of an adult anglerfish female from the Linophryne family collected in the northern region of the Gulf of Mexico. © 2016 DEEPEND/ Dante Fenolio
Article

Meet the Tiny Bacteria That Give Anglerfishes Their Spooky Glow

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An illustration of a deep-sea dragonfish.
Photo

Deep-Sea Dragonfish

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