A new species of ancient shark has been discovered at Mammoth Cave National Park in Kentucky, officials said.

“ Macadens olsoni is notable for its unique tooth whorl, a curved row of teeth designed for crushing small sea creatures.

The ancient shark species, known as Macadens olsoni, “is notable for its unique tooth whorl, a curved row of teeth designed ...

It's Shark Week, and Mammoth Cave took the unofficial holiday to announce the discovery of a ancient shark species.

The fossilized tooth of a newly discovered ancient shark species – dating back about 340 million years – has been unearthed ...

Many visitors expect to see stalactites and stalagmites galore in Mammoth Cave but are surprised when they don't see many of ...

A 340-million-year-old shark species has been identified through a fossilized tooth found in Mammoth Cave National Park, ...

Mammoth Cave National Park is in Kentucky and has the world's most extensive cave system, over 400 miles long. Prehistoric people used it for shelter and resources.

MAMMOTH CAVE, Ky. — The world's longest cave just keeps getting longer. Mammoth Cave is a national park located in southcentral Kentucky. According to the park's Facebook page, six more miles ...

Kentucky’s Mammoth Cave National Park could grow by another 500+ acres. Here’s where it could grow and why Mitch McConnell, Brett Guthrie support the plan ...

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

The species, Macadens olsoni, was found in the Ste. Genevieve Formation, rock layers dating back roughly 335 to 340 million ...