A newly identified ancient shark species, Macadens olsoni, has been at Mammoth Cave National Park. The National Park Service ...

Mammoth Cave, the world's longest known cave system, stretches 426 miles under Kentucky. The cave's limestone began forming 330 million years ago when the region was submerged under an ocean.

Deep within Mammoth Cave, the world’s longest cave system, paleontologists have uncovered the remains of a never-before-seen species of ancient shark. Named Clavusodens mcginnisi, or McGinnis ...

Researchers collecting fossils deep inside Kentucky's Mammoth Cave have uncovered the remains of a never-before-seen species — an absolutely tiny ancient shark with nail-like teeth. The newfound ...

Mammoth Cave was rediscovered by settlers in the early 1800s. It used to be a saltpeter mine until the end of the War of 1812. Today, it is a popular destination for guided tours.

All Mammoth Cave tours can be reserved at Recreation.gov, the National Park Service's reservation website. You must have a ticket to enter the cave, and it is strongly advised to book in advance ...

Cave explorer Floyd Collins got trapped in Sand Cave in Kentucky 100 years ago and later died. The incident drew national attention and helped lead to the creation of Mammoth Cave National Park.

An explorer of the Mammoth Cave system in Kentucky who died 100 years ago is credited with the creation of the national park. A national park in Kentucky has the longest known cave system in the ...