Quite sturdy for a pop-up book; we got ours secondhand and all the pop-ups work, except the cricket but somehow it still makes noises, so partially works. Absolutely a perfect concept for this medium, because it talks about simple but fascinating animal behaviours which *you can then see in action*! The male blue-footed booby does a dance to show off his feet while his mate spreads her wings in appreciation. The baby owl fluffs out its wings and opens its round yellow eyes to startling effect. The fireflies blink repeatedly and puffins clack their beaks at each other. One of the best pop-up books I've ever seen. ( )

This great pop-up book highlights the unusual and interesting behavior by various animals (gorillas, elephants, blue-footed boobies, foxes, porcupines, frogs, moths, pink cockatoo, peacocks, etc.) and brings them vividly to life. Animal lovers will find much to enjoy in the intricate pop-up scenes, and may just learn a thing or two along the way. My favorite pop-up has to be the frilled lizard, (so realistic!) but the blue footed boobies and the Siamese fighting fish are exceptional as well. ( )

http://joyenglish.tistory.com/entry/National-Geographic-Action-Book ( )