Presenter Nigel Marven walks alongside the biggest dinosaurs that ever lived, providing a sense of perspective as he journeys through the Land of Giants.

All Sea Monsters: A Walking With Dinosaurs Trilogy Original series Big Al Armoured marine giants—Sea Monsters: A Walking With Dinosaurs Trilogy, Into the Jaws of Death ...

with some species becoming true giants of the Mesozoic." When pterosaurs arrived on the ground, it was already inhabited by a ...

A long time ago, there were real creatures bigger than anything we can imagine- - dinosaurs ... It was one of the biggest land animals ever, measuring 122 feet, almost 37 meters in length ...