A pill bug is not an insect!

Pill bugs, or roly-polys, are small creatures that are famous for rolling up into a ball for protection. However, it is a little known fact that they are not insects, but rather isopods, a type of arthropod.

Pill bugs are located all around the world and are usually found in moist areas along with many other insects, hence the confusion. As it turns out they are actually more closely related to lobsters and shrimp than other insects, and could technically survive just fine under water! Sounds like they could be delicious with some cocktail sauce.

(Source)