Many people just found out that flashlight fish exist, thanks to the viral tweet below. The glowing fish have lights under their eyes that blink on and off. But it turns out that there’s even more ...

Fish genetically modified to glow different colors have escaped farms in Brazil and could disrupt biodiversity in the country's Atlantic Forest region. A new study published in Studies on Neotropical ...

Their weird glowing green color makes them look like they've been swimming in a nuclear plant's spent fuel pond. But the zebra fish on sale in Taipei shops have an even stranger background: They're ...

Fish have been glowing in the dark seas longer than humans have walked on land. Two new studies led by the American Museum of Natural History show that biofluorescence in marine fishes dates back at ...

The research maps biofluorescence across 459 glowing fish species and shows just how varied the colors have become.