This fact-filled series looks at the features and functions of the human body by itself and in comparison to those of different animals, studying similarities and differences. Manageable text is paired with dazzling layouts and photographs of animals--including people--in their natural habitats. The end of each book looks at sorting the featured creatures into animal groups, using the classification information covered throughout. Budding scientists are sure to get excited when they get their hands on these essential early-elementary life science guides.