National Geographic Live: Rise of T. rex with Dr. Lindsay Zanno

Monday, November 3, 2025  |  11:00am

Tyrannosaurus rex is the most famous dinosaur in history, but few people know the true story of this species. We go on assignment with paleontologist and National Geographic Explorer Lindsay Zanno to dig sites in the remote deserts of the western U.S. to find out how T. rex evolved. 

Along the way, uncover the entire landscape—from plants to fish to mammals—where these memorable dinos reigned 66 million years ago. Dr. Lindsay Zanno is one of the world’s leading experts on the evolution of theropod dinosaurs and has discovered more than a dozen new species, including Siats, one of the largest meat-eating dinosaurs on the continent, and Moros, North America’s tiniest tyrannosaur.

Recommended for Grades 3+