Millions of years ago, life on Earth began in the oceans, then moved to the land, eventually producing all the animals and people we recognize today. This pop-up picture book tells younger children how life developed. It uses words kids can readily understand and dramatizes the concepts with delightful full-color illustrations that literally spring up off the page. Here's a fun introduction that will teach younger children about life forms. Each of the book's five pop-up illustrations opens from a two-page spread that has an added gatefold page attached. Each time young readers open the extra gatefold, they activate a clever pop-up creature. Illustrations include a sea monster that opens and closes its jaws, a prehistoric bug that flaps many wings, an ancient reptile that raises its neck and head, a tiny prehistoric mammal that scampers over a nest of dinosaur eggs, and a modern human baby who cheerfully pops up from a page of his own. (Ages: 2-5)