In der zweiten Episode kämpfen die Wirbeltiere um die Vorherrschaft in der Luft. Nach den Insekten erobern nun die Dinosaurier den Luftraum: 3D-Animationen zeigen kleine Echsen und monströse Segelflieger in luftigen Höhen. Doch die Hautflügel der Dinosaurier werden bald von Federn abgelöst. Vögel sind es auch, die das große Aussterben vor 66 Millionen Jahren überleben. Und mit den nachtaktiven Fledermäusen ist auch die Zeit der fliegenden Säugetiere gekommen.
The episode begins with David Attenborough explaining how insects had the skies to themselves for millions of years - when a pterosaur suddenly arrives on the scene and eats a dragonfly. David Attenborough tells the viewers that the pterosaur's name is Dimorphodon. He travels back in time and watches the pterosaurs evolve into truly humongous behemoths like the late Quetzalcoatlus. Some pterosaurs even sported colourful crests that could have been used to attract mates. However, the pterosaurs had to share the skies with some remarkable flying dinosaurs like Microraptor. From these feathered flyers evolved the birds, who survived the K-Pg mass extinction. Some, like the swans, could gracefully fly at 30mph as David Attenborough shows when he tracks their progress on a boat. But then the mammals managed to lift themselves up, like the nocturnal bats. The battle between the birds and the bats for aerial supremacy soon began, and David Attenborough says that in the concluding episode, he will study the Aerodynamic War.
David Attenborough jatkaa lentävien eläinten evoluution jäljitystä, kuten sulkapeitteiset dinosaurukset, jotka ovat lintujen esi-isiä, ja nisäkkäät, jotka dominoivat yötä lepakoina.
לאחר מפגש עם מספר יצורים שגולשים דרך החיים בבורניאו, סר דיוויד אטנבורו מחזיר את הזמן לאחור.
David Attenborough ci conduce in uno straordinario viaggio alla scoperta dei segreti sull'evoluzione delle creature volanti. Grazie all'aiuto delle immagini generate dalla computer grafica, analizziamo creature vissute sul nostro pianeta milioni di anni fa.
David Attenborough zet zijn zoektocht verder met uitgestorven reptielen, dinosaurussen en vleermuizen. En met verbluffende computeranimaties.