What are Pterosaurs?

Do you like dinosaurs?  What about the flying pterosaurs?  What do you know about them? David Attenborough has produced dozens of shows and books about how plants and animals live. But his latest, Flying Monsters 3D, takes a look at creatures that have been extinct for around 65 million years--pterosaurs, or flying reptiles--and examines why they may have evolved to fly. Listen to this article and let me know if this is a movie that you would like to see?  

David Attenborough Flies With The Pterosaurs