Deep in north-western Puerto Rico, the limestone caves hide a world few people ever see. It’s dark. Damp. A tangle of ...

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.

Scientists rediscover the rare Myiophanes kempi thread-legged assassin bug in Andaman limestone caves after a century of absence.

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

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 ...

A view of the jelly fish-like forms of the “Paradise Lost” cave. (image via Flickr user Meghan Nazer) PORTLAND, Ore. — A label like psychedelic sculpture, for what it’s worth, does justice to the ...