
Firefly (Photinus pyralis)
Photinus pyralis, commonly known as the common firefly or lightning bug, is a species of beetle famous for its bioluminescent ability. These insects produce light through a chemical reaction in their lower abdomen, which they use to attract mates and deter predators. Fireflies are active during warm, summer evenings and are often seen flashing in coordinated patterns. The light they emit is a natural, cold light that does not generate heat. Their flashing signals are species-specific, helping fireflies identify each other. Overall, fireflies are a fascinating example of bioluminescence and play a role in ecosystems as both predators and prey.