An original new science series which explores the key characteristics that divide the main animal and plant groups, and looks at how these characteristics have evolved over time.

The information is supported by examples that highlight the quirky and amazing qualities of the natural world, as well as revealing the dazzling variety within each group. Why do Reptile Have Scales? looks at the features that make reptiles so unique. It describes how reptiles have evolved over time, and highlights how they adapt to survive in many different kinds of environment.

Reptile anatomy, movement and self-defence all also feature.