The stunning cave in Naica, Mexico, is home to some of the largest crystals on Earth, but harsh conditions can kill those who stay too long.

Watch as we team up with Catch Em All Fishing to safely capture and transfer a massive toothy pond monster a fierce predator with serious bite from one enclosure to another. This intense relocation ...

Two 325-million-year-old ctenacanth shark fossils discovered in Mammoth Cave shed light on ancient marine ecosystems.

The Chihuahuan Desert in the Guadalupe Mountains of southern New Mexico is one place where sensitive public lands are being drilled for oil. At 4.3 miles long, Parks Ranch Cave in southeastern New ...

The animals that plummeted 85 feet into Wyoming’s Natural Trap Cave provide a layered history of life dating back to the ...

In the torchlight, they eyed the stalactites, like monster’s teeth ... Moyes says she plans to expand her work to sites in Mexico and Guatemala. In some caves, the offerings are so elaborate and ...

A young cave guide and a cave researcher on a mapping project discovered ancient artifacts in a hidden room, archaeologists said. Mexico National Institute of Anthropology and History In the ...