Weather makes them sleep

"In the forest, a little wood frog buries itself under a pile of leaves. Winter is on the way, and the frog settles in for a long snooze. Why does it need to sleep? Learn all about wood frog hibernation and how weather makes them sleep"--Provided by publisher.

"A black bear settles in its cozy den. It spent the fall munching on juicy berries, but now it's getting cold. It's time for the bear to take a long snooze. Why does it need to sleep? Learn all about black bear hibernation and how weather makes them sleep"--Provided by publisher.

Garter snakes spend the summer on the hunt for a food. But soon, summer will end. When it gets cold, garter snakes must find a good place to slumber. Why do they need to sleep? Learn all about garter snake hibernation and how weather makes them sleep. Colorful photos and carefully leveled text guide readers along on the journey.

"Brrr! The air is getting cold. Groundhogs move into the special burrows they spent the summer digging. It's time for them to settle down for a long snooze. Why do they need to sleep? Learn all about groundhog hibernation and how weather makes them sleep"--Provided by publisher.