From School Library Journal Gr 3-5 - Each book takes a fairly comprehensive look at the featured animal, covering habitats, behavior, physical features, diet, and defense in straightforward, fact-filled fashion. Though the prose is sometimes awkward, the logical organization and consistent pace provide plenty of material for report writers and other learners. The straightforward narratives are occasionally enlivened by intriguing facts, like the cottontail's practice of eating its own waste, and examples of specific animal behavior, such as hummingbird defense strategies. Varied species within each group are noted within the text and sometimes, but not always, identified in the photographs. High-quality photos are neatly arranged to support the textual topic and provide plenty of visual variety.