Biofluorescent animals have been documented before, but most of them were aquatic. Scientists at the St. Cloud State University in Minnesota used blue light on 14 different families of amphibians and found that they all glowed in some way, each with different intensities and patterns. This was most likely developed by their ancestors, but the scientists still aren’t sure what it’s purpose might be. It could be used for communication or evading predators, but there are useful applications for humans as well. This natural biofluorescence can be useful for medical imaging and lead to important medical advances. It also makes these animals easier to find and survey in the wild for research and conservation purposes.

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