Synthetic canine cadavers help vets save real dogs. Veterinary students at Cornell University have been practicing procedures on synthetic canine cadavers made out of tissue composed of water, salt, and fibers that are either plant-based or synthetic, like polyester. Cornell has had three artificial canines for about six months, although only one of them is the full body: the other two only simulate the animal’s abdomen. Before synthetic cadavers, vet schools had to practice on what’s known as a kill procedure, in which a vet student practices more than one procedure on a live, but anesthetized dog, which is later euthanized.