Scientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about ...

Feb. 18.--The discovery of a large cave by two young men while engaged in preparing a piece of new land for a crop is the latest excitement here. View Full Article in Timesmachine » Advertisement ...

Curious divers on South Australia's Limestone Coast are hoping to one day be able to dive into one cave and come out another, ...