Flyers
by John Bonnett Wexo · 1991
Popularity 2
Discusses the three groups of prehistoric vertebrates that took to the sky, the flying reptiles, the first birds, and the first bats.
Bats, FossilFossil BirdsFossil BatsPterosauriaPrehistoric animalsBirds, FossilPterosaursJuvenile literatureBatsBirds, fossilBirds