What makes a frog an amphibian but a snake a reptile? Both classes may lay eggs, but they have different skin coverings and breathe in different ways. Pages of

Introduces the reader to one of the most easily recognizable groups of animals, from the Pacific giant salamander to the tiny but deadly golden poison-dart frog

In Amphibians, early readers learn about the defining characteristics of this animal group. Vibrant, full-color photos and carefully leveled text will engage ea

An accessible guide to classification and diversity. Find out about the characteristics, life cycles, and habitats of each group. Discover how plants and animal