A glow worm is a type of insect known for its bioluminescent properties, which produce a soft, glowing light. This light is primarily emitted by the larvae of certain species, such as those in the family Lampyridae, commonly known as fireflies. The glow serves as a means of attracting mates and can also help lure prey. Glow worms are typically found in dark, damp environments, such as caves or forests. They create silk threads to catch insects, which they consume. The light produced by glow worms is a result of a chemical reaction involving luciferin, a light-emitting compound, and oxygen.