A professor at Northland College in Wisconsin discovered that a certain type of tree frog glows under ultraviolet or black light. Other fluorescent animals have already been documented, but Jonathan had never heard that a mammal could fluoresce like that didn't just happen, did it? One night he hears this weird sound coming from his bird feeder and so he turns the light on these flying squirrels. "This blaze of pink jumps back into the trees"
An accidental discovery on a nighttime walk led one scientist and his team to wonder: How many mammals glow under ultraviolet light? The list keeps growing, but scientists still aren’t sure why these furry creatures glow.
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