Ancient footprints upend timeline of humans arrival in North America spokesman.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from spokesman.com Daily Mail and Mail on Sunday newspapers.
Oldest footprints in North America radically push back human arrival washingtonpost.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from washingtonpost.com Daily Mail and Mail on Sunday newspapers.
New techniques have shown that people reached the New World far earlier than the long-standing estimate of 13,000 years ago, but scientists still debate exactly when humans arrived on the continent and how.
23,000-Year-Old Human Footprints Found In New Mexico Are Revolutionary ancient-origins.net - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from ancient-origins.net Daily Mail and Mail on Sunday newspapers.