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 ...

With distinct tubular eyes and a natural glow, two species of bioluminescent deep-sea fish nicknamed "barreleyes" have been identified. The newly described species are part of the family ...

Bioluminescence might seem uncommon, even alien. But biologists think organisms evolved the ability to light up the dark as many as 50 different times, sending tendrils of self-powered luminosity ...

Red light can’t penetrate far past the ocean’s surface, so researchers thought that most fish don’t perceive red light. But some reef fish have taken advantage of the absence of red light, using it to ...

California was derided by some when the Fish and Game Commission voted last month to ban sales of the first genetically modified pet, the GloFish. But the state's review for environmental safety was ...