Ice Age Footprints

Foto © ARTE France / Bella Falk / Passport & Pixels / Courtesy of GBH / NOVA

Foto © ARTE France / Bella Falk / Passport & Pixels / Courtesy of GBH / NOVA

Foto © ARTE France / Bella Falk / Passport & Pixels / Courtesy of GBH / NOVA

Foto © ARTE France / Courtesy of the National Park Service

Foto © ARTE France / Courtesy of the National Park Service

Foto © ARTE France / Courtesy of the National Park Service