Bats have been around since the time of the dinosaurs and they have adapted and thrived in virtually every corner of the planet. In this fascinating documentary, renowned researcher Dr. Brock Fenton and other scientists help us make sense of these strange and astonishing mammals. More than merely a hardy and adaptable species, they are scientifically extraordinary creatures — in some cases, even immune to viruses. Scientists are now developing potential therapies based on their discoveries.