Each segment bears 1 pair of long legs. When disturbed, pillbugs roll up into a tight little ball. Most millipedes, sowbugs and pillbugs are scavengers, feeding on decaying organic matter. Often they are found in groups under leaf litter, mulch, tree bark, flower pots, damp cracks and crevices and refuse piles. Sometimes they may feed on roots and plant parts.
Centipedes are predators that feed on small insects and spiders.
Millipedes, sowbug and pillbugs are slow moving animals that may enter buildings and cause annoyance. Because they need high humidity, they often die quickly indoors. They do not bite humans or damage articles in the home. Centipedes are fast moving animals and may be annoying indoors . If threatened, they may bite.