Centipede is a long and flattened arthropod with one set of legs per body segment. There are many different species of centipedes found throughout the world. Some of them can grow up to 12 inches long. These predators feed on other insects by killing or paralyzing them before eating. They have venom glands within their front limbs which are used for catching prey and injecting them with venom. Finding centipedes frequently in your house is often a sign you have other infestations.