Walking With Dinosaurs Special: The Giant Claw

Journey back to the dunes of prehistoric Mongolia to find the owner of the largest claws of all time - Therizinosaurus. Presenter Nigel Marven's adventure covers vast nesting sites, skirts curious velociraptors and avoids the terrifying tarbosaurus so we can come face-to-face with The Giant Claw.

• Tim HainesDirector

• Nigel MarvenHimself - Presenter