By Rebecca Shavit – The Brighter Side
Beneath the white gypsum dunes of New Mexico, scientists have uncovered something remarkable—trails of footprints that challenge what we thought we knew about early humans in North America. These prints, preserved in hardened mud at White Sands National Park, have now been confidently dated to around 23,000 years ago. That’s 10,000 years earlier than previous estimates of when humans first set foot on this continent.