The series features the latest research by international palaeontologists and uses computer generated imagery to explore the physiology of prehistoric animals and the world they lived in. 　　[Series 2] 　　Secrets of the Titanosaurs 　　Lost Valley of the Dinosaurs 　　Secrets of the Spinosaurus 　　Secrets of the Ocean Killer 　　Secrets of the Triceratops 　　Secrets of the Woolly Rhino 　　Production comp...