Birds

Which birds are taller than human beings? Which birds cannot fly? Why do Canada geese fly in v-shaped flocks? And how do hummingbirds help plants grow? Birds gives readers an introduction to birds and their physical characteristics. Students also learn about birds life cycle, behaviors, and adaptations to various habitats. The volumes special features include maps, diagrams, fun facts, glossary, resource list, and index.How do animals hunt, escape, and communicate? And how do scientists distinguish one animal group from another? World Books acclaimed Animal Lives series introduces the main animal groups to students with a primary reading level of grades 3 to 5 and teaches them basic principles of scientific classification.