Giant of the Skies is the fourth episode in the Walking with Dinosaurs series.
This episode was scientifically advised by Dr David Unwin of Bristol/Berlin University, and by another British Palaeontologist, Dr David Norman of Cambridge University. Dr David Norman is a world renouned expert and authority on Early Cretaceous Dinosaurs, none more so than Iguanodon, which he has studied meticulously for decades. There is a vast wealth of fossil evidence for this episodes time, particularly from Europe and South America.
The story begins with a male Tropeognathus ( identified as Ornithocheirus ) dead on a beach. It then goes back six months to Brazil, where the Ornithocheirus flies off for Cantabria among a colony of Tapejara. He flies past a migrating column of Dakotadon ( North American Iguanodon) and a Polacanthus. He reaches the southern tip of North America, where he is forced to shelter from a storm. To pass the time, he grooms himself, ridding his body of Saurophthirus parasites. Then he sets off across the Atlantic, which was then only 300 kilometers wide and, after a whole day on the wing, reaches the westernmost of the European islands. He does not rest here, as a pack of Utahraptor are hunting Iguanodon. He flies to the outskirts of a forest, but is driven away by Iberomesornis. He reaches Cantabria, but was delayed by the storm and cannot reach the center of the many grounded male Ornithocheirus. Consequently, he does not mate and dies from exhaustion. In the credit, stating the Pterosaurs and Dinosaurs continuing to rule in the world even no other animals have are left to for shadowing them. But, however they make it to the ultimate test as they have to even survived the coldest season of the land as in next episode to feature how Dinosaurs to overcome the winter in the darkness of prehistoric land that one day that place were be Antarctica.
- Unidentified pterosaur #1 - the early morning coastal pterosaurs.
- Unidentified pterosaur #2 - the flock in the canyon.
- Unidentified pterosaur #3 - the victim of the Male Ornithocheirus fish theft.
- Saurophthirus (flea)