The Shift in Prehistoric Apex Predators

Name: The Shift in Prehistoric Apex Predators
Uploaded: 2021-01-30
Duration: 178423
Description: At the end of the Cretaceous period, only one mega-predatory dinosaur ruled North America: Tyrannosaurus rex. The Borealopelta was alive around the mid-Cretaceous era, so eyes turn to one of T. rex's ancestors to figure out why it disappeared.

At the end of the Cretaceous period, only one mega-predatory dinosaur ruled North America: Tyrannosaurus rex. The Borealopelta was alive around the mid-Cretaceous era, so eyes turn to one of T. rex's ancestors to figure out why it disappeared. (02:58)