A new species of shark was discovered in Kentucky's Mammoth Cave National Park. The ancient shark is called a "Macadens Olsoni." Experts say it had a distinct curved row of teeth, used to crush small ...

It's Shark Week, and Mammoth Cave took the unofficial holiday to announce the discovery of another new shark species. Mammoth Cave announced the discovery of the "Macadens olsoni" Thursday. The fossil ...

A rare bite into the past. The fossilized tooth of a newly discovered ancient shark species – dating back about 340 million years – has been unearthed in the world’s largest cave system, officials ...

It grew to less than a foot in length and likely feasted on mollusks and worms. A new species of ancient shark has been discovered at Mammoth Cave National Park in Kentucky, officials said. Named ...

Experts say it had a distinct curved row of teeth, used to crush small sea creatures. The fossils found are estimated to be 355 million years old, back when Mammoth Cave was nothing but warm shallow ...

A new-to-science species of ancient shark was recently discovered in Mammoth Cave National Park in Kentucky. The Macadens olsoni is known for its unique tooth whorl, a curved row of teeth designed for ...