One convention animators made with insect characters was to draw them with only four legs, not the six legs they characteristically have. Four legs are easier to animate than six legs. For example, the insect's front legs are hands and its hind legs are feet. One common cheat is to draw the "spare" legs, but simply have them do exactly the same thing as one of the other pairs. Compare Four-Fingered Hands, which is based on the same principle. See also Vertebrate with Extra Limbs.