Mix-Up Pop-Up books display zany art, amusing pop-ups, and split pages that inspire kids to conjure up their own strange creatures. Each page is split into top and bottom halves so that the top of one animal's head can be matched with the bottom half of another to produce a whimsical creature that never existed, except in kids' imaginations. And when each page is opened to its full width, the pictured animal's mouth pops up and snaps shut in a most horrifying way! The full-color illustrations that fill the two-page spreads will turn children's surprise into squeals of laughter! In Jurassic Jumble the big, blue Pteranodon has a long, sharp beak, and when he spreads his wings he swoops across the sky. His picture changes dramatically when kids mix it with four other Jurassic monsters that appear in this book.