Silverfish are not harmful to humans. They typically chew on books and items in the pantry, as well as linens and rugs. They are most often found in warm places, such as a laundry room or a fireplace.
Silverfish are normally active at night. They come out to find food, but they stick to eating non-living items, such as paper and glue. Silverfish have a lifespan of two to eight years, which is a long lifespan for an insect, and they also reproduce rapidly. A silverfish infestation can be serious, but pest control professionals can deal with the infestation easily.