Whats are amphibians?
. Amphibians are cold-blooded animals with a backbone (vertebrates) that hatch from eggs. This class of animals includes not only frogs but toads, salamanders and caecilians. The word “amphibian” means double life. It’s a good name because many species of amphibian spend part of their life in aquatic (water) and terrestrial (land) environments. Because their skin lacks a shell, scales or outer drier covering, most amphibians live in wet or damp places so their skin doesn’t get dried out.