It is so BBC-like, it is hard to believe it wasn't made by the BBC's nature department. The camerawork is outstanding in every sense but that's just half of the story. How it develops, from part to part, is also sensational. Whoever wrote the narration was on top of his/her game, and definitely took well good notes of how it is done properly. Paul Rudd follows suit and does an "Attenborough": a measured, lovable, cool and occasionally funny narration perfectly in sync with the emerging pictures. No lurid BS here which poisons modern documentaries so often these days. It is by far the best non BBC made documentary for years. Well done. A footnote for Paul: Whenever you are struggling with an A-lister BS, you are always welcome here.