Silverfish are small, wingless insects known for their silvery-gray color and fish-like appearance. They typically measure about 1/2 to 1 inch long and have long antennae and three long bristles at the rear. Silverfish thrive in dark, damp environments, often found in basements, bathrooms, and kitchens, where they feed on carbohydrates, particularly starches and sugars. These insects are nocturnal and move quickly, making them difficult to catch. While silverfish do not pose a direct threat to humans, they can damage household items such as books, wallpaper, and clothing. Their presence may indicate moisture issues in the home, which can lead to further problems.