Reptiles, a diverse team of air-respiratory vertebrates, are characterized by pets, their scaly skin, amniotic eggs, and ectothermic (cold-blooded) metabolism. They can be typically categorized into four living orders: Crocodilia (crocodiles and alligators), Sphenodontia (tuataras), Squamata (lizards and snakes), and Testudines (turtles and tortois