As scientists continue to explore underground ecosystems, they uncover new species and gain valuable insights into ...

Sinocyclocheilus xingrenensis, or the Xingren golden-lined fish, has a “golden yellow” body with a “slightly translucent white” dorsal fin and black gills, according to the study. Black markings dot ...

Krubera Cave in the republic of Georgia is currently the deepest known cave, at 7,208 feet. But Dark Star, with so many areas still to survey, is a prime candidate to take over the title.

Explore Mammoth Cave National Park, the longest cave system on Earth, featuring the richest known habitat for cave wildlife in the world. It may be difficult to think of caves as spacious and grand, ...