A wonder of nature to experience! With sliders, pop-ups, and sounds. A rustle, a frantic hopping, then silence in the green-leaved cherry tree. The mother tit patiently incubates. Then she becomes increasingly agitated, checking to see if anything is happening. Suddenly - crack, crack, crack - the egg breaks open. A chick peeks out. This book, featuring naturalistic images and extraordinary effects, offers a fascinating insight into the world of nature. Innovative sliders and pendulums illustrate the development of the egg from the first delicate crack of the shell to the hatching of the chick. You can even listen to the cracking of the shell. A masterpiece of paper art from the creators of the bestseller "The Apple Wonder," which amazes both children and adults!.