Pteropede, a gray-green, millipede-like animal from High Gravity Planet with accordion-folding wings. It resembles a dragonfly when it flies. It may be able to take advantage over of the denser air to fly, but high gravity can lead to a bumpy landing. To support its great weight, the creature's eight legs are directly under its body. It breathes through lungs in the tip of its thagomizer-like tail, which is more efficient than the way insects take in air, so the Pteropede is able to pump oxygen through its large, heavy body. To grow, the Pteropede must enter the water. It is only in the buoyancy of water, where gravity is little effect, that the Pteropede can shed its skin and increase in size. Once the new skin is hardened, the Pteropede can return to the demanding heavy gravity environment on land.