Many fish species glow in the dark
DOI: 10.1063/PT.5.027620
Science : Biofluorescence is more common in sea life than previously thought. Although it has long been known that marine organisms such as corals and jellyfish glow, only recently has the phenomenon also been observed in fish. To examine a range of species, John Sparks of the American Museum of Natural History in New York City and his colleagues conducted four expeditions to the Bahamas and the Solomon Islands and visited a number of aquariums. They found that more than 180 species of fish fluoresce under high-intensity blue light, which matches the color of the ocean. Whether biofluorescence is used by certain species to communicate or for some other functional purpose remains to be determined, however.
