Background.
The toads and frogs evolved from salamanders some 180 million years ago (Triassic period). They have changed little since they developed the large, jumping-type legs, and have become very successful. Today there are over 2,600 species of toads and frogs, and they live in a variety of environments.
With proper care, most toads and frogs do quite well in captivity. Knowing their natural history can help to furnish the keeper with the information necessary to keep these amphibians in good health.