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.
Polar Extremes
Making North America
Ice Age Death Trap
Walrus: Life on Thin Ice
100,000 Acres of Pine
Prehistoric Worlds
Ice Age Footprints
24 Hours After: Asteroid Impact
NOVA
Great Yellowstone Thaw
