"Frogs' Twilight Glow: Illuminating Love in the Shadows"

A study of 151 South American frog species has revealed that every single individual exhibited some degree of fluorescence, indicating that biofluorescence is widespread among frogs. The fluorescence is well-matched to frogs' vision and ecology, suggesting it plays a role in communication and possibly predator deterrence. The glow is brightest during twilight, the time when many frogs are most active, and is most visible in the parts of the body involved in signaling to other frogs. The green glow is particularly significant, matching the perception peak of frogs' green rods and differing from background colors during breeding hours. Further research is needed to determine the function of the orange fluorescence.