Sixty-nine million years ago, southern Argentina's Patagonia region had a warm, wet climate and was blanketed by a forest. It was also home to "Titanosaur," the largest animal to ever roam on Earth. In this 360° video, find out just how big this dinosaur could grow to be.

To learn more, play NOVA's Polar Lab! https://www.pbs.org/wgbh/nova/labs/lab/polar/

Production Intern: Shantal Riley Edited by: Arlo Perez & Lorena Lyon Narrated by: Caitlin Saks

Senior Digital Producer: Ari Daniel NOVA Labs Editorial Director: David Condon

Additional Visuals: Pond5 Music: APM

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