Animals come in an astonishing variety of shapes, sizes, and species — and scientists have developed a system for organizing this incredible diversity into groups. This engaging book introduces young readers to the classification of animals, helping them understand how and why scientists group animals together and what characteristics define each major group.

Students will explore the major groups of animals — mammals, birds, reptiles, amphibians, fish, and invertebrates — and discover the characteristics that define each group. They will learn about the diversity within each group, from the smallest insects to the largest whales, and explore how classification helps scientists study, protect, and understand the animal kingdom. The book also covers the concept of biodiversity and why it is essential for healthy ecosystems.

Aligned with life science curricula, this book is an ideal resource for school libraries, classrooms, and independent learners. A comprehensive glossary, animal classification activities, and discussion questions help students develop a solid understanding of animal groups and the remarkable diversity of life on Earth.