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 ...

Twenty years ago, a cave diver found thousands of fossils in a blue hole on Great Abaco Island. The fossils reveal the island's Ice Age history, with pristine specimens of now-extinct species.

CARLSBAD, N.M. (KRQE) – A team of researchers has identified an Ice Age relative of the muskox from fossils uncovered in Carlsbad Caverns National Park. The new species, named Speleotherium logani, ...