Centipedes are attracted to lightly damp shelter, meaning, they’ll live under leaves, mulch, rocks, and wood. In small numbers, these insect-eaters make great neighbors. In large numbers, they present a slight health risk, as they can bite and administer a light poison. Both the common outdoor centipede, and the so-called “house centipede” can multiply quickly; be sure to clean up potential hovels for these pests.