What are as light as a feather and as old as the dinosaurs? Butterflies! With a lively text and vibrant paper-collage illustrations, award-winning author Bob Barner brings us a wonderful look at the amazing history of butterflies, and how their lives intersected with the dinosaurs millions of years ago. Readers will be fascinated to discover that when they stop to admire a beautiful butterfly, a dinosaur may have once done the same! This gorgeous, rollicking, informative book is sure to become a favorite of budding scientists everywhere.