However, apterygotes (bristletails and silverfish) and many immature aquatic insects have abdominal appendages.
As they moult, young silverfish develop a greyish appearance and a metallic shine, eventually becoming adults after three months to three years.
Silverfish can sometimes be found in bathtubs or sinks at night, as they have difficulty moving on smooth surfaces and so become trapped.
Silverfish are nocturnal insects that enjoy cool and moist conditions.
It may have superficially resembled a modern-day silverfish insect.
The silverfish eats around the ink of the paper it damages and may prevent conservation from easily taking place.
Manuscripts are organic materials that run the risk of decay and are prone to be destroyed by silverfish.
Their garb was one-piece suits shiny silverfish-gray color.
