Thysanuron

: They feed on starchy substances, including wallpaper paste, bookbindings, glue, paper, and certain textiles like cotton or silk.

: They have flat, carrot-shaped bodies. Silverfish, specifically, are covered in silvery scales that give them a metallic, fish-like appearance when they move. Habitat and Behavior thysanuron

: While harmless to humans and pets, they can be considered household pests due to the damage they cause to books, documents, and clothing. Evolutionary Context : They feed on starchy substances, including wallpaper

Thysanurans are unique because they can produce , an enzyme that allows them to digest cellulose directly. Habitat and Behavior : While harmless to humans

: They are nocturnal and go through ametabolous metamorphosis , meaning they don't change form as they grow; they simply molt multiple times and get larger throughout their lives. Diet and Impact

: Commonly found in damp, cool areas like bathrooms, basements, and kitchens.

These insects are considered some of the most primitive land-dwelling arthropods. Because they are wingless and have changed very little over millions of years, they provide entomologists with a "living link" to the early ancestors of modern winged insects. The Insect Orders: Order Thysanura--Silverfish