Known as Cueva de los Cristales (Cave of Crystals), this hidden chamber in Mexico holds some of the largest natural crystals ...

Lynda Louks, collections manager of UCO’s Natural History Museum and professor of environmental biology, braced herself in ...

Optymistychna Cave This cave is listed in the Guinness Book of Records as the largest gypsum cave and the second-longest in terms of total length of cave passages. It is located on the western ...

Bats are among farmers’ oldest defense against pests, as the fuzzy flying mammal is known to eat thousands of insects a night ...

This cave had clearly built itself from the bottom up, rather than the top down. The ancient chemical soup had deposited not only deep beds of gypsum but also sulfur, manganese, iron, and other ...