What Exactly Is a Silverfish?
Silverfish are small, wingless insects that have existed for hundreds of millions of years. Fossil evidence suggests they are among the oldest insect species still living today.
They are easily recognized by their:
- Silvery-gray to metallic blue color
- Slender, carrot-shaped body
- Three long bristles extending from the rear
- Long antennae
- Quick, fish-like movements
Most adult silverfish measure between ½ and 1 inch (1.3–2.5 cm) in length.
Where Do Silverfish Live?
Silverfish thrive in warm, humid environments with little light. They are most commonly found in:
- Bathrooms
- Basements
- Laundry rooms
- Kitchens
- Attics
- Closets
- Storage boxes
- Bookshelves
They hide during the day and become active at night, which is why many homeowners only notice them after turning on a bathroom or kitchen light.
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