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Railroad worms, also known as glowworms, are a type of bioluminescent insect. They belong to the family Phengodidae and are primarily found in the Americas, particularly in regions like Central and South America. These unique insects produce light through a chemical reaction in their bodies, which they use to attract prey or mates. The light emitted by railroad worms can vary in color, often appearing green or yellowish, and it serves various ecological purposes in their natural habitats. | JocH
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