Why is the sky blue and the grass green? What are the colorful secrets of the enigmatic aurora borealis or the ethereal shimmer of a soap bubble? From San Francisco's Exploratorium, the acclaimed hands-on museum behind the best-selling Explorabook, comes The Color of Nature, which delves into these and other intriguing questions. Extraordinary photographs and an engaging text illustrate the fascinating phenomena behind the myriad colors that make up our world -- from moon bows to mandrills, chameleons to hydrangeas. This remarkable volume will fire the imagination of anyone with a passion for nature, science, or photography.