Archaeologists at White Sands National Park in New Mexico examining a 10,000-year-old track of human footprints, have made more fascinating discoveries. But they’ve also unearthed a trowel-full of unanswered questions about the timeworn mystery of the relationship between humans and ice age megafauna.
The Alkali Flat in New Mexico , U.S.A, is a huge salt playa (dry lake) known as the world’s largest gypsum dune field, caused as a warming climate shrank an ancient lake bed that was eroded by the wind to create dunes and salt flats. On these flats, archaeologists have discovered hundreds of thousands of human footprints dating from the end of the last ice age (about 11,550 years ago), as well as the prints of many Ice Age megafauna that stalked, and were stalked by, early humans.
