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

Sharks are some of the most fearsome predators in the ocean, but did you know they have a secret superpower? Unlike humans, who only get two sets of teeth in a lifetime, sharks never run out—some ...

For centuries scientists have imagined megalodon as an oversized great white shark. But would another shark provide a better ...

Most kids have a natural curiosity about sharks − especially their sharp and abundant teeth. Our team had the idea to use the appeal of this charisma ...

A new study proposes that the massive ancient shark was built more slenderly than a great white. But not all paleontologists ...

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 ...

Marine biologist Carolin Nieder says she discovered that rig sharks make clicking sounds Rig sharks make a clicking sound with flat teeth, which are quite different from other shark species' teeth, ...

Researchers in New Zealand found that a small species of shark makes noises with their teeth when touched by humans Charlotte Phillipp is a Weekend Writer-Reporter at PEOPLE. She has been working ...