The insects known as silverfish do not bite humans. When challenged or surprised, they run away rather than attack or defend themselves. They are experts at hiding in hard-to reach areas. These creatures are typically nocturnal.
Silverfish live on sugars and starches. To obtain these, they consume things such as book glue, linen, silk and dead insects. Their nests are likely to be found near food supplies. Although they do not bite people, silverfish leave holes in objects that they feed on, including paper, books, clothes, wallpaper and packages of food. Silverfish prefer damp areas and are often found in bathrooms, under sinks and in garages.
Silverfish like dark, damp locations and will create a nest as close to a food source as possible. As nocturnal insects, they forage at night and hide during the day. Silverfish eat sugar and starch and can sometimes leave a yellow residue, Orkin reports. They live between two and eight years and can live a year without food, according to Wikipedia. Their order of insects derives its name from the Greek words for "bristle" and "tail."