This insect gets its name from its silvery, metallic appearance and fish-like shape and movements. Silverfish have no wings, but are able to run very fast. They tend to hide their presence from humans which means any damage they have caused could go unnoticed as well. Silverfish are a starch feeder they damage (eat) paper, fabrics, glues and other organic materials. They may also damage silk and some synthetic fabrics, but they usually avoid woolens.