The common earthworm lives within soil, but it often emerges from the ground at night and after periods of heavy rain. Earthworms are found abundantly all across North America, Europe and western Asia.
Ranging anywhere from a few inches to up to 14 inches in length, the entire body of the worm is covered in small segments called annuli. Small bristles called setae enable the worms to move and burrow. The worms consume soil underground, extracting nutrients from decomposing roots and leaves. Worms that evade predators, such as birds, rats and toads, may live up to six years in the wild.