From PBS Terra.

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It’s grudge match time. Except that this one took place over millions of years, between two fierce and formidable enemies. It’s attack vs defence on an epic evolutionary scale. Utahraptor was the largest raptor to ever walk the Earth, honing its weapons and tactics to become a truly apex predator. And top of Utahraptors’ dinner wish list was Gastonia. But Gastonia wasn’t going to take this lying down. They were the spikiest dinosaurs to ever lived, covered in thick armour and developing their own deadly weapons with which to fight back. Who would have come out on top of this evolutionary arms race?

This is the first episode of Walking with Dinosaurs Unearthed, a companion digital series for Walking with Dinosaurs, which JUST launched on PBS 25 years after the iconic original series.

Walking with Dinosaurs: Unearthed is produced by BBC for PBS Digital Studios.
©BBC 2025. All Rights Reserved.

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