Kleitman often used himself as a subject in his sleep research, particularly on sleeplessness—whether in a pitch-black cave in Kentucky, in an underwater submarine during World War II, or on a trek ...

In the province of Granada, there is a town famous for something really unique: it has more than 2,000 cave houses carved ...

By working out the ratio of uranium to thorium in the mineral deposits, they could figure out when those ancient cave dwellers had broken the stalagmites. The speleothems themselves are between ...

Located in Kinver Edge, a high heath and woodland on the border between Staffordshire and Worcestershire, the Holy Austin Rock Houses are where England's last cave dwellers are said to have lived.

Perhaps hoping to gain the blessing of the stone-age hunter-gatherers that dwelt along the east coast 30,000 years ago, visitors to the Baxian Caves (八仙洞) during the 1970s would grab a handful of soil ...

Photos taken as recently as 2016 give an idea of how some families still live in these traditional cave dwellings today. The exact location the photo above was taken in is unclear, but it shows ...

The Abanda Caves in Gabon harbor a unique population of dwarf crocodiles that evolved distinct traits after being isolated ...

A ninth cave where the millipede occurred was destroyed by a quarry. “These tiny cave dwellers have been around for millions of years, but they could disappear forever in the next few decades,” said ...

Moreover, lint is a food source for tiny cave-dwellers, and those extra snacks can upset the cave’s natural food web. And some microbes eat the organic matter and produce an acid that dissolves rock ...