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.

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

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.

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 ...

— -- Thousands of visitors are lured to central Kentucky each year by their interest in exploring the longest cave known in the world, Mammoth Cave. But as they make their way from I-65 ...

Mammoth Cave National Park, located in south central Kentucky, spans more than 52,000 acres and is home to the world's longest cave system, according to the National Park Service.

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 ...