PBS Eons | How Did Dinosaurs Get So Huge?

Part of why we’re so fascinated with extinct dinosaurs it’s just hard for us to believe that animals that huge actually existed. And yet, they existed!

2017-10-02 02:00:00 - PBS Eons

From the Jurassic to the Cretaceous Periods, creatures as tall as a five-story building were shaking the Earth.