Ox Bel Ha, located beneath Mexico’s Yucatán Peninsula, has officially reclaimed its title as the longest underwater cave system in the world, stretching an astonishing 524 kilometers. This submerged ...

Mammoth Cave National Park, home to the world’s longest known cave system, stretches for more than 680 kilometres, and counting, into the Earth. What began as a limestone labyrinth has turned out to ...

Deep beneath the rolling hills of New Zealand’s North Island, a long-sealed chamber has opened a window into a world that ...

Caves are one of the most mysterious habitats on earth, a habitat that is dark, lacks sunlight, has a constant temperature, and food is limited. However, after millions of years, some animals have ...