BBC - Planet Dinosaur (2011) Part 5 New Giants

From the deadliest killers to the biggest and strangest beasts, Planet Dinosaur brings to life a new and terrifying world of dinosaurs. More dinosaurs have been discovered in the last two decades than the past 200 years. This series uses the latest CGI and cutting-edge research to reveal the deadly secrets of these new giants For the first time on British television, the very latest dino discoveries have been brought together and brought to life in this groundbreaking series. Featuring a cast of new dinosaurs that will feed the nation's nightmares, the next generation of children aren't going to be talking about the tyrannosaurus rex; they are about to meet far bigger, badder, more vicious characters that roamed the Earth 95 million years ago. Narrated by John Hurt.

Part 5 New Giants

This episode of the documentary series focuses on the new giants, the heavyweights of the dinosaur world. It is only in recent years that experts have unearthed the biggest dinosaurs that ever lived. One monster eclipsed all others; more than seven times as heavy as diplodocus was the immense argentinosaurus - a single backbone was bigger than a human. For years, these giants were considered immune to attack from any predator - until the discovery of mapusaurus, a new giant killer whose fate appeared to be inextricably linked to argentinosaurus.

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