12,000-year-old footprints found in White Sands National Park in New Mexico are the longest trackway of human footprints ever found and they tell the story of an Ice Age adult, a child, and an encounter with a sloth.
Click above to hear part 4 of Feet Don’t Fail Me, featuring David Bustos, Chief of Resources at White Sands, National Park, New Mexico, and Sally Reynolds, Paleontologist at Bournemouth University, U.K.
Illustration by Karen Carr for nps.gov.
Feet Don’t Fail Me:
Part 1: Daniel Lieberman / Walking Barefoot
Part 2: Madhusudhan Venkadesan / Walking Strong
Part 3: Jeremy DeSilva / Walking Tall
Part 4: David Bustos & Sally Reynolds / Footprints in the Sands of Time







