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

MAMMOTH CAVE, Ky. — A new-to-science species of ancient shark was recently discovered in Mammoth Cave National Park in ...

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

The new species is just one in a whole treasure trove of ancient sharks that have been uncovered within the world’s longest cave system as part of ongoing research that aims to survey national parks ...

A newly identified species of ancient shark has been discovered at Mammoth Cave National Park, marking another significant ...

The Macadens olsoni fossils were found in the Ste. Genevieve Formation, which dates back approximately 340 to 335 million ...

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

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

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

A new species of shark was discovered in Kentucky's Mammoth Cave National Park. The ancient shark is called a "Macadens ...

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.

Kentucky's Mammoth Cave was already the longest cave system in the world. "THE LONGEST CAVE IN THE WORLD IS NOW EVEN LONGER!!!" Mammoth Cave National Park announced on Facebook over the weekend.