This graphic nonfiction book introduces various animal life cycles, including birds, amphibians, butterflies, and mammals. The Building Blocks of Life Science volumes feature whimsical characters to guide young readers through topics exploring animal behavior, the cell cycle, plant and animal life cycles, and much more. The science is as sound as the presentation is fun! The volumes include a glossary, an additional resource list, and an index. Several spreads in each volume are illustrated with photographs to help clarify concepts and facts.