Raintree Perspectives: Why am I an Amphibian?

Amphibians are one group of animals. There are about 5740 species, or kinds, of amphibians. Frogs, salamanders, newts, and toads are amphibians. But lizards, otters, and seals are not. So what makes an amphibian and amphibian? In this book, we will look closely at one amphibian, the red-eyed tree frog, to find out.