Kirk Johnson

Walrus: Life on Thin Ice

Self - Presenter · 2025

Ice Age Footprints

Self - Host · 2022

Hvor træerne blokerer for lyset

Eric 'Concerned Ranger' Jones · 2020

Polar Extremes

Self - Host · 2020

Polar Extremes

2020

Prehistoric Worlds

Self - Paleontologist and Director, Smithsonian · 2020

Great Yellowstone Thaw

Himself - Presenter · 2017

Making North America

Self - Host · 2015

Ice Age Death Trap

Himself - Denver Museum of Nature & Science · 2012

24 Hours After: Asteroid Impact

2009

Nova

Host · 1974