It turns out that some of our DNA — about 8% — are the remnants of ancient viruses that embedded themselves into our genetic ...

Rare fossils from Kentucky’s Mammoth Cave have unveiled three never-before-seen prehistoric sharks, revealing a lost tropical ...

We visited four of the country’s “crown jewels” and found deep concern for the park system’s future among Americans of all ...

This is the second ancient shark species found in a rock layer in Mammoth Cave National Park in Kentucky.

New species of shark discovered at Kentucky's Mammoth Cave National Park BREAKING: Zelensky rejects Trump proposal to swap land with Russia ‘Black widow’ who fatally poisoned 11 elderly ...

MAMMOTH CAVE, Ky. (WLWT) — 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 ...

By Emily Sanderson Click here for updates on this story MAMMOTH CAVE, Ky. (WLWT) — A new species of shark was discovered in Kentucky’s Mammoth Cave National Park. The ancient shark is called a ...

The roughly half-inch tooth from the uncovered species, named the Macadens olsoni, was found in the depths of Ste. Genevieve Formation at Mammoth Cave National Park in Kentucky.