DK Eyewitness Guides - Amphibian

Photographed in full color . Take a close-up look at the first vertebrates to conquer land--from familiar bullfrogs and toads to unusual legless caecilians and eel-like sirens. Explore their anatomy, behavior, and pivotal place on the evolutionary time line.  

https://rapidgator.net/file/83ce4bd3c529acd91bdc71689091effe/