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 ...

Some animals produce their own light, no special effects involved. In certain cases, it helps them hunt or avoid predators.

Sean Burgess (right) and Bruce Draper, professors in the UC Davis College of Biological Sciences, are using zebrafish to detect chemicals that may cause reproductive harm. The GloNad fish glow red or ...

Lumpy, but brilliant under UV light. By Annie Roth What color is a lumpfish? The answer is more complicated than you might expect. These bumpy, bottom-dwelling fish, found in the North Atlantic and ...