Here are a few interesting facts about fireflies:
Firefly eggs glow - Adults aren't the only ones who glow. In some species even the larvae and eggs emit light when responding to tapping or vibrations.
Fireflies are medically and scientifically useful - The two chemicals in the firefly's tail that create 'cold' light are luciferase and luciferin. These chemicals can be helpful in the study of many diseases, from cancer to muscular dystrophy. But that's not all they're used for. Electronic detectors built with these chemicals have been fitted into spacecraft to detect life in outer space, as well as food spoilage and bacterial contamination on earth.
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