Nearly 180 species of fish that glow have been identified in a new study led by scientists from the American Museum of Natural History.
The study, published in Thursday's PLOS ONE, shows how the fish absorb light and eject it as a different color for varied reasons including communicating and mating.
Above, a biofluorescent surgeonfish (Acanthurus coeruleus, larval)
A biofluorescent lined seahorse (Hippocampus erectus)
A green biofluorescent chain catshark (Scyliorhinus retifer)
A biofluorescent ray (Urobatis jamaicensis)
A sole (Soleichthys heterorhinos)
A stonefish (Synanceia verrucosa)
A false moray eel (Kaupichthys brachychirus)
A biofluorescent goby (Eviota sp.)
A lizardfish (Saurida gracilis)
A red fluorescing scorpionfish (Scorpaenopsis papuensis) perched on red fluorescing algae at night in the Solomon Islands.
A triplefin blennie (Enneapterygius sp.) under white light (above) and blue light (below).
Researcher David Gruber searching for new biofluorescent organisms off Hele Island, Solomon Islands, with a 5K EPIC camera system and blue lights.