They are sometimes kept as pets by hobbyists and can live almost 3 years in captivity.
Common pill bugs are not actually insects, but rather isopods, which means that they are closely related to crustaceans like crabs.
When feeling threatened, they roll up into a tight ball so that their armor can protect their belly, head, and legs.
They help to cycle nutrients through the food web by eating rotting organic materials like leaves and wood.
They are commonly found in damp places, where decomposition is occurring.