Why Do Bears Hibernate?: the cozy, true story of animal winter sleep. Packed with WOW facts.

Where do all the bears go in winter?When the cold blows in and the food runs out, bears do something amazing: they curl up and sleep the whole winter away. But WHY? And how does a giant bear go for months with no food, no water, and no potty breaks?Why Do Bears Hibernate? is the first book in THE BIG WHY, the read-aloud fact series that turns one big kid-question into a whole lot of WOW. Curious owl Ollie and his glowing firefly friend Flick guide young readers from the great fall feast, into the cozy den, all the way to the happy spring wake-up.Inside you will discover: - How a bear eats 40 hamburgers worth of food in a single day to get ready- How its heart slows to just 8 beats a minute- How tiny cubs, no bigger than a chipmunk, are born in the middle of winter- The wood frog that freezes solid, then thaws and hops away in spring Every single fact is checked against trusted science and national-park sources. Bright pictures, snappy true facts, and pure WOW, perfect for curious kids ages 4 to 8.Read on to find out why!