When Experts Scoured Below The Sand With Radar, They Found Ancient Footprints That Rewrite History

Researchers are surveying ground in New Mexico’s White Sands National Monument. To do this, they’re using an established technology for a novel purpose. The scientists are scanning the surface of an area called Alkali Flat with ground-penetrating radar (GPR). And what they now discover below this ancient dried-out lake bed gives them some startling new insights into humans and animals from 12,000 years ago.