It’s grudge match time. Except that this one took place over millions of years.

How an Evolutionary Arms Race Created Bizarre Dino Designs Walking with Dinosaurs

Premiered June 15, 2025
How an Evolutionary Arms Race Created Bizarre Dino Designs

It’s attack vs defense 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 were the spikiest dinosaurs to ever lived, covered in thick armor and developing their own deadly weapons with which to fight back.

About the Program

Walking with Dinosaurs

The legend is back as Walking with Dinosaurs returns. Meet six iconic dinosaurs, emerging from incredible dig sites as we tell these heroes’ stories of struggle, love and survival.

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