Think you know all there is to know about frogs? Acclaimed author James Martin will make you think again in this fascinating look at the ever-popular amphibian. Martin deftly details all the froggy factstheir amazing metamorphosis from tadpole to frog, what it means to be an amphibianbut then he delves deeper, giving readers a reason to care about frogs. Frogs are among the Earth's oldest creatures, dating back 190 million years. Because of their remarkable ability to adapt to different climates and habitats, frogs are what scientists call an indicator species: By monitoring how frogs are doing, we can get a sense of the health of our planet. And lately frogs have been dying out at drastic rates. Loaded with fabulous color photographs from Art Wolfe, Frogs is a beautiful, informative, and thought-provoking introduction to a creature many of us can find in our own backyards.