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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 the Earth. In this 360° video, find out just how big this dinosaur could grow to be.

Join a dig to unearth Titanosaur, the largest dinosaur to ever roam the Earth.

Join a dig to unearth Titanosaur, the largest dinosaur to ever roam the Earth.

Meet "Titanosaur," the Largest Dinosaur Ever

Evolution

Narrator: Welcome to Patagonia in southern Argentina. Sixty-nine million years ago, South America and Antarctica were connected. So what did this part of the world look like back then? This dig site gives us a clue.Paleontologist: This really almost hanging by a single rock.Kirk Johnson: Hanging by a thread.Narrator: These paleontologists are unearthing a new species of titanosaur, one of the largest dinosaurs to ever live. Just take a look at the size of that bone.By now, you've probably noticed the landscape here is almost totally barren. It's a desert, after all. But for these dinosaurs to have survived, there must have once been a lot of vegetation.Do you hear that? It's the sound of a dense, lush forest. Why don't you take a look around? Sixty-nine million years ago, this place had a warm, wet climate and was blanketed by a forest that would have looked something like this. A forest like this one would have offered no shortage of green stuff. Some titanosaurs ate up to half a ton of vegetation a day. And these animals got huge.To see just how big the biggest titanosaur was, play NOVA’s Polar Lab.

Meet "Titanosaur," the Largest Dinosaur Ever

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