Fireflies, also known as lightning bugs, are beetles in the family Lampyridae that are famous for their bioluminescent abilities, which they use primarily for communication and mating. Their glow is a result of a chemical reaction involving luciferin and luciferase, producing light without heat. This adaptation is crucial for fireflies as it helps them attract mates and communicate in low-light environments, showcasing the importance of sensory adaptations in specialized niches.
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