An ancient shark older than forests still glides through deep oceans today. Its strange teeth, slow life cycle, and ...

MAMMOTH CAVE, Ky. (FOX 56) — A new species of ancient shark was recently discovered at Mammoth Cave National Park. Fossilized teeth of the “McGinnis Nail Tooth,” nicknamed the “Chipmunk Shark” due to ...

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 ...

Editor’s note: Every year, hundreds of undergraduates at the University of Delaware pursue research under the guidance of a faculty mentor. Such experiences provided by UD — a nationally recognized ...

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 ...

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 ...

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,” ...

Despite multiple mass extinctions, the frilled shark has managed to thrive for 100 million years. Today, it remains one of ...

VIRGINIA BEACH — One of the most fearsome predators to rule the seas millions of years ago may have left something behind at Virginia Beach’s North End. Terry Siviter and his 5-year-old grandson, ...

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 ...

What kind of creatures were kicking about in the oceans 340 million years ago? We’ve now got a slightly clearer picture ...