Evidence of Evolution
Susan Middletonis a photographer specializing in portraits of animals and plants. She is co-author of four books on the world's natural heritage, includingArchipelagoandWitness.She lives in San Francisco.Mary Ellen Hannibalis the author ofLeaves & Pods(Abrams). Her writing has appeared in publications such as theSan Francisco Chronicle, Esquire,andElle.She is the founder of Evolve 2009 and lives in San Francisco.