Flashlightfish

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What may look like glowing eyes are actually organs beneath each eye that are inhabited by symbiotic bioluminescent bacteria. There are eight species of Flashlightfish found in warm seas around the world. Like their relatives, the Orange roughy and the squirrelfish, they are nocturnal animals that retreat to caves beneath reefs in the daytime, and hunt for small animals in shallower water at night.

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