A chipmunk pokes its head out of a hole. Then it pops back down. Safe below ground, the chipmunk digs a hidden home for itself. When it's done, the chipmunk will sleep, eat, and stay safe in this secret hideaway. Young readers will explore the subterranean world of these furry little animals through clear text and full-color photos and diagrams. Age-appropriate activities, such as using a ruler to measure the length of a life-sized photo of a chipmunk, give readers a chance to make observations and gain insights beyond the facts and figures.