What sets Helicoprion apart from its contemporaries is a peculiar spiral of teeth, creating an enigma that has intrigued paleontologists since its discovery. Tasked with assembling an accurate ...

Scientists have found ancient nail tooth shark fossils deep inside Mammoth Cave in Kentucky, revealing new information about ...

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 ...

Ever wonder why sharks have so many differently shaped teeth or why they keep regrowing throughout their lives? Dr. David ...

Rows of these teeth emerge from gum tissue, reminding her of stones set in a mosaic. In a first, researchers have recorded what could be a shark making deliberate sounds. A small shark from New ...

This “chipmunk shark” packed quite a punch with its strange set of teeth. Its diet varied from shrimp to worms to hard-shelled brachiopods — generally crunchy things. The discovery ...

More there’s something about Megalodon that grips the imagination like no other. Fossilized shark teeth are some of the most abundant remnants of prehistoric oceans, providing scientists with ...

Turns out, the palm-sized tooth belonged to an animal that died at least 3.5 million years ago: an Otodus megalodon shark. "She told me she was wading in knee-deep water when she saw it and dove ...

In a significant stride forward for marine conservation, the Two Oceans Aquarium, in Cape Town has successfully released Gen, a female ragged-tooth shark, back into the waters off Struisbaai ...