In Belize’s Actun Tunichil Muknal cave, a sacred Maya site, plants grow in darkness, sparking concerns about how tourism affects its fragile ecosystem.

“At (Britannia Creek Cave), (crickets) are numerous even in the dark zone, with individuals ... known to have “tusk-like ...

I hear the sound of cave suits scraping against rock. I’ve found the Israelis. And they have found another small hole that drops even farther into the unknown depths of Dark Star. They are ...