No main cast listed for this episode.
NOVA — S43E7
Episode: Making North America: Life
Air Date: 2015-11-11
Runtime: 55 min
Overview
How did life emerge on our primeval continent? Why was North America home to so many iconic dinosaurs like T. rex? And how did a huge sea filled with giant marine reptiles end up covering Kansas? We tell the surprising intertwined story of life and the landscape in North America.