Researchers have found an ancient shark fossil in Kentucky’s Mammoth Cave, offering new insight into prehistoric marine ecosystems.

They’d filmed one of “the world’s rarest shark species.” A team of researchers set out to investigate “dolphin diets and marine diversity” in Cardigan Bay, Wales, as part of an ongoing, yearslong ...

Notable for “a unique tooth whorl,” the Macadens olsoni possessed a curved row of teeth that helped the tiny shark crush ...

This is the second ancient shark species recently found in a rock layer in Mammoth Cave National Park. New details emerge ...

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

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 ...

An underwater camera has captured footage of a critically endangered shark on the Welsh coast. The rare sighting shows an ...

New species of shark discovered at Kentucky's Mammoth Cave National Park ...

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

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

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

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