Reptiles have been around for 300 million years, including during the age of the dinosaurs. About 6,500 species of reptiles still live today. For example, reptiles would include crocodiles, snakes, lizards, and turtles. Most reptiles live on land, and most reptiles reproduce offspring through external fertilization, known as laying eggs. Reptiles are vertebrates, and, unlike most other animals, are covered in scales. In addition, they are cold-blooded creatures that breathe using lungs, and regulate their body temperature by seeking or avoiding the sun’s heat. Furthermore, there are some species of reptiles protected by law, such as species of tortoises, salamanders, and rattlesnakes. Why do you think that these species of reptiles would need to be protected by law? Also, how could a decrease in the reptile population affect other animal species? Give some other examples of reptiles.