 The mechanism is found in both vertebrates such as fishes and snakes, and insects such as hairstreak butterflies.Automimicry has sometimes been put to military use.The A-10 Thunderbolt (Warthog) was often painted with a false canopy on its underside, imitating itself, while the armoured recovery vehicle variant of the Churchill tank had a dummy gun, imitating an armed variant of the same tank.