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 ...

For years, the oldest widely accepted cave art came from Spain, where mineral crusts dated paintings to more than 64,000 years. That work also relied on uranium decay in crusts, so it offered a ...

Humans only discovered Arne Ovamgrotta in 1991, but it was a haven for at least 46 species over 75,000 years ago. By Andrew Paul Published Aug 4, 2025 4:09 PM EDT Get the Popular Science daily ...

Deep beneath the tropical forests of the Yucatán Peninsula lies a vast subterranean domain few people can explore. Accessible by sinkholes known as “cenotes” and potentially stretching across ...

Gerlinde Bigga does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...