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. ---from the publisher
64 pages 978-0789457547 Ages 8-12
Keywords; amphibians, animals, frogs, toads, zoology, biology, science, Science Curriculum, nonfiction, information, part of a series, 8 year old, 9 year old, 10 year old, 11 year old,12 year old
