Whether you’re into stalactite symphonies, prehistoric shelters, or just love your trails dark and damp, these 10 U.S. underground wonders (cited by fans on TripAdvisor and other sources) have you ...

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

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

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

A 340-million-year-old shark species has been identified through a fossilized tooth found in Mammoth Cave National Park, offering a rare glimpse into ancient ocean life.

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

“ 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.

New age dating of a boomerang found in a Polish cave has archaeologists abuzz that it could be the oldest boomerang on Earth.

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

With more than 40 different species of fossil sharks and relatives identified from Mammoth Cave specimens in the past 10 ...

Expressing his astonishment at the diverse array of sharks encountered during the exploratory ventures within Mammoth Cave, ...