Centipedes are very long and narrow, and flattened from top to bottom. There may be a great many pairs of legs, but they will have a single pair on each segment of the body, separating them from millipedes. They have a pair of very long antennae and the last pair of legs projects backward and are much longer than the ones before it. Most centipedes measure about two inches however, a couple species can grow to six inches or longer.
Color is usually dark reddish brown, although some may have a blue-green tint on a tan background.
Centipedes are generally nocturnal and hide outdoors under boards, rocks, or vegetation during the day. Indoors, they are usually found on baseboards and around doorways and windows, wandering on walls in crawl spaces, basements or garages.
Centipedes are nocturnal and come out at night to eat spiders, insects, earthworms and snails.
Females lay their eggs one at a time, burying them under a shallow layer of soil to protect them from being eaten by other insects and male centipedes. Some species live up to six years.
Centipedes can inject venom through a pair of appendages directly behind the head.