How did 'Prehistoric Planet' create such incredible dinosaurs? Find out in a behind-the-scenes peek. - Livescience.com

'Prehistoric Planet' is out now, and here's how they made it.

"Prehistoric Planet" sends viewers back in time on a guided tour of the Cretaceous period with Sir David Attenborough, in a documentary series that reimagines familiar dinosaurs such as the mighty … [+5583 chars]

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