Acting
Kirk Richard Johnson is an American paleontologist. He has worked at the Denver Museum of Nature & Science and the Smithsonian’s National Museum of Natural History.
NOVA
1974
Polar Extremes
2020
Great Yellowstone Thaw
2017
Walrus: Life on Thin Ice
2025
Making North America
2015
100,000 Acres of Pine
Ice Age Footprints
2022
Ice Age Death Trap
2012
Prehistoric Worlds
24 Hours After: Asteroid Impact
2009