New 'Making North America' Series Explores Continent's Rich History

The first part of the "Making North America" series has already aired, but the second installment will air tonight (Nov. 11) at 9 p.m. ET/8 p.m. CT (check local listings). The host of the series, Kirk Johnson, is a renowned paleontologist and director of the Smithsonian’s National Museum of Natural History in Washington, D.C. Throughout the series, Johnson flies, swims, hikes and rappels around the North American continent, speaking to experts and using (literally) earth-shattering special