Why does a baby have about 300 bones, but his mom just over 200? Why are my bones hidden? And why does Mom say milk is good for my bones?

Welcome to the snug world of bear dens. Kids will explore these intriguing places, and find our how, when, and why they are used. Then they'll Zigzag through an adventure of discovery: if a den is a bed for a bear, what's a bed for a tiger? Who else hibernates?

Imagine a herd of elephants all talking to each other. How do they do it? What do they tell each other? Readers will learn a lot about elephants, habitats, animal communication, and much more. With their curiosity piqued, readers then zigzag to other questions: what if elephants lived in a different environment? How do other creatures communicate?