rge and small have desired to take flight. Long before the invention of the airplane, the mighty pterosaurs were the first flying vertebrates and the largest flyers ever. How could these excellent flyers master the difficult trick? How did their body adapt to flying? In their millions of years of flying, how did they evolve further? Join the passionate pterosaurs throughout the Triassic, Jurassic, and Cretaceous periods as they evolve into the greatest flyers of all time. Age of Pterosaurs follows the great achievements of the pterosaurs who believed in the power of their dreams. Through its beautiful illustrations and inspirational stories of the pterosaurs' reign over the skies, this second volume from the PNSO Field Guide to the Ancient World makes the perfect gift for any dinosaur enthusiast!