Researchers have discovered the world's longest trail of fossilized human footprints at White Sands National Park, New Mexico ...
Far below the surface of Mexico’s Yucatán Peninsula, a flooded labyrinth of limestone tunnels has quietly guarded one of the most haunting fossil troves of the Ice Age. In the darkness of a submerged ...
On a dry lakebed in southern New Mexico, a set of ghostly footprints has forced archaeologists to redraw the map of the first Americans. These tracks, pressed into mud by teenagers, children, and ...