Ocean acidification is the ongoing decrease in pH of Earth’s oceans that scientists have linked to human activities including ...

Sharks are famous for their fearsome teeth. That could change - Scientists have linked human activities including the burning ...

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 ...

A brand new species of prehistoric shark has been discovered, and its teeth have a terrifying addition: their very own tiny fangs. The shark has been named Palaeohypotodus bizzocoi. Its genus name ...

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

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 ...

A new species of ancient shark was identified by teeth found in a Kentucky national park. The teeth were found at Mammoth Cave National Park, which encompasses some of the Mammoth Cave, the largest ...

Prehistoric shark teeth found in limestone formations in north Alabama and in a cave in Kentucky led to the discovery of two new ancient species of the predatory fish. The sharks, Troglocladodus ...

An ancient shark called Glikmanius careforum was about 10 to 12 feet long and had a powerful bite. Paleontologists in Kentucky and Alabama discovered fossils belonging to three new ancient shark ...

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 ...