Fossilized footprints discovered in White Sands National Park push back the timeline of human presence in North America to over 20,000 years ago, challenging the long-held Clovis-first theory. These ancient tracks, alongside evidence of early technology like …
In White Sands National Park, a huge desert of brilliant white gypsum sands has yielded something much more significant than its in itself remarkable landscape, and this is a set of fossilized footpr… [+5399 chars]
