Populations are dwindling throughout our country and the world. Unfortunately, we may be chasing after fewer and fewer of these magical insects each summer. Predators who have had a mouthful of this chemical quickly learn to associate the firefly’s glow with a very bad taste. Most species of fireflies are filled with a nasty tasting chemical. Males and females of the same species will flash this pattern to notify each other of their presence.įireflies also glow to warn predators to stay away. Every species of firefly has its own distinct pattern of flashing their light-producing bottoms. When attracting a mate, it all comes down to the twinkle. Bioluminescence is a chemical reaction that allows fireflies to produce a cold light that emits little to no heat.įireflies glow to communicate with potential mates as well as predators. Chasing after the blinking glow of fireflies on a warm, summer evening is a favorite childhood memory for many.įireflies, also called lightning bugs or glow worms, are winged beetles known for their bioluminescence in the twilight hours.
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