Immerse yourself in a world of monsters that are stranger and scarier than anything you've ever seen in a film. Palaeontologists now know that dinosaurs ruled the planet for more than 250 million years, that they spread to every corner of the globe and that they evolved in even more monstrous and bizarre ways than we could ever have imagined! Best of Earth Science: http://bit.ly/EarthLabOriginals Best of BBC Earth: http://bit.ly/TheBestOfBBCEarthVideos Taken from 'Planet Dinosaur' (2011). Narrated by John Hurt. This is a channel from BBC Studios who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-feedback--contact-details.aspx