Do reptiles have to make nests?

No, not all reptiles have to make nests. Some reptiles, such as snakes and lizards, lay their eggs in the ground, sand, or under rocks without building a nest. Other reptiles, such as turtles, build nests in the ground or sand, but they do not construct elaborate structures like birds do. Some species of reptiles, such as crocodiles and alligators, build nests from vegetation and mud, while others, such as tuataras, dig burrows in the ground to lay their eggs.