Ghost Fossils Reveal Life-Or-Death Ice Age Story At White Sands National Monument

On a remote salt flat with nearby towering, snow white gypsum dunes, a team of scientists is following a string of fossilized footprints back in time to the end of the Ice Age, when humans – adults and children – were likely hunting a giant, razor-clawed ground sloth.
- By NPT Staff - May 1st, 2018 1:45am