One pterosaur that evolved just before the whole astonishingly colorful and diverse group went extinct had a wingspan of thirty-nine feet-making it the largest living thing ever to grace the skies. Where did they go? Here is the definitive portrait of the "flying dinosaurs," the strangest creatures to have ever lived, based on a mountain of new fossil discoveries in Mongolia, China, and Texas. Unwin-one of the world's foremost experts on pterosaurs-breaks open the pterosaur enigma in this first book for the general reader to investigate these magnificent flying beasts. He tracks their trails, physiologically dissects them, and eloquently puts them back together in the history of evolution. These successful animals were brightly colored, spread widely around the globe, and evolved into far more species than has been previously thought. Here is your opportunity to take off into the lost world of the legendary flying dragons of deep time.