Biggest Dinosaur Ever! Argentinosaurus - Planet Dinosaur - BBC

John Hurt narrates the facts behind the discovery of huge nesting site in modern day Patagonia. Fossilised remains show Argentinosaurus laid tens of thousands of eggs in a 15 km nesting site used for hundreds of thousands of years. The hatchlings, if they survive, will grow at an incredible rate. Over a 40 year life span Argentinosaurus can grow from 4 kg to 75 tons! Narrated by John Hurt Planet Dinosaur tells the stories of the biggest, deadliest and weirdest creatures ever to walk the Earth, using