Silverfish are small, wingless, fish-like insects up to 1 inch long that are silver or black in color and move very fast. They originated 400 million years ago and are some of the earliest known insects. Silverfish fear light, are mostly nocturnal, can live 2 to 3 years and can produce more than 50 offspring. They can be found worldwide in attics, basements, bathrooms and kitchens - wherever it is dark and there is moisture. They consume dead insects or starches and sugars such as the glue in old books, carpet fibers, clothing and fabrics. Silverfish can even live up to a year without eating at all. Although they do not transmit diseases, they can be very damaging pests.