Reptiles

Reptiles are often thought of as slimy, but their skin their skin is actually cool, dry, and leathery. The scales, which give the reptiles' skin their texture, are part of a thick skin with few glands. The reptile must periodically shed its outgrown scales and replace then with a larger set, which the reptile grows before it sheds the old. Their thick skin helps them conserve some heat in its body. Many sun themselves to warm their bodies, but too much heat can kill them. …