Reptiles are fully adapted to life on land. Their skin is dry and hard, unlike the soft and moist skin of amphibians. 

Reptiles reproduce by laying eggs. Eggs that are laid on warm ground eventually hatch and reveal small reptile individuals that are already capable of living on land.

Snakes, lizards, turtles and crocodiles are the best known groupsof reptiles.

Because reptiles are poikilothermic organisms, they can only move when the weather is warm enough.