Flyers

By John Bonnett Wexo

Subjects: Birds, Juvenile literature, Pterosauria, Fossil Birds, Fossil Bats, Pterosaurs, Bats, Fossil, Birds, fossil, Bats, Birds, Fossil, Prehistoric animals

Description: Discusses the three groups of prehistoric vertebrates that took to the sky, the flying reptiles, the first birds, and the first bats.