Researchers in Cambodia surveyed dozens of previously unexplored caves and found several species never seen before, including a pit viper that is still being studied.

A breathtaking expedition high among limestone escarpments and deep in the cave systems they contain has revealed several new reptile species, including a dazzling pit viper you have to see to believe ...

MEXICO CITY (AP) — Activists in Mexico have published photos of steel and cement pilings from a government project that were driven directly through the roofs of sensitive limestone caves on the ...

Let’s say you’re on the way to Needles. Alright, you’re probably not on your way to Needles. But say you’re headed to Las Vegas or Lake Havasu, and you’re looking for a fascinating stop along the way.

Beneath the thick limestone walls of Pembroke Castle, down a narrow passage cut through the foundations of a 12th-century ...

The most common process by which limestone caves form involves carbonic acid — or weakly acidic groundwater — as the primary agent. When carbonic acid contacts limestone, it dissolves minerals in the ...