The bestselling I Wonder Why series has the answers to all the questions you’ve ever wanted to ask about the natural world, history, space and more! What do a

This book introduces readers to the science behind animal adaptations. Students learn about how camels' humps help them store food and remain cool in the hot de

Why do camels have big humps on their backs? Have you ever wanted to know why? This Just So story gives and explanation for how the camel got his hump. Read on