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 ...

A rendering of Clavusodens mcginnisi, or “McGinnis’ nail tooth,” an ancient shark that stalked the ocean floor 340 million years ago. Rendering courtesy of the National Park Service A shark no larger ...

A tiny shark species dating back hundreds of millions of years has been identified at Mammoth Cave National Park in Kentucky, the National Park Service announced Monday. The identification was made ...

Maryland became the first state to designate an official shark on April 14, 2026, naming the extinct Otodus megalodon whose ...

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. Sign up ...

MAMMOTH CAVE, Ky. — A new-to-science species of ancient shark was recently discovered in Mammoth Cave National Park in Kentucky. The small shark named Clavusodens mcginnisi, or “McGinnis’ nail tooth,” ...

STANFORD, Calif. (KGO) -- If you ever come face-to-face with the wrong kind of shark, there's something you probably want to avoid. Just a hint: they're long and really sharp. But now, researchers at ...

Bull sharks (Carcharhinus Leucas) are one of the ocean’s most fearsome creatures. Although some animals may prey on bull sharks, such as crocodiles, killer whales, and the occasional great white shark ...

About 340 million years ago, a tiny shark swam in the waters of the world’s longest cave system in Kentucky, its unusual mouth curved in a way that will ultimately end up defining its future legacy.

Maryland lawmakers voted to designate the massive, prehistoric megalodon as the state's official shark. The passed ...

PORTLAND, Maine (AP) — Sharks are the most feared predators in the sea, and their survival hinges on fearsome teeth that regrow throughout their lives. But changes in the ocean's chemistry could put ...

Add Yahoo as a preferred source to see more of our stories on Google. A close-up of a blacktip reef shark tooth that was used in the research. - Max Baum How will the climate crisis affect one of the ...