Spotted ratfish, or “ghost sharks,” have forehead teeth that help them grasp onto mates. It’s the first time teeth have been found outside of a mouth.

Using scanning electron microscopy, researchers analyzed the way teeth changed over time in more acidic conditions. They ...

Scientists have uncovered a new fossil species of extinct shark hidden within the winding chambers of Mammoth Cave in Kentucky – the longest known cave system on Earth. The discovery was published in ...

Though chimaeras also have cartilage skeletons, they lack the ferocious rows of regenerating teeth that sharks have. Instead, ...

This tiny deep-water shark has one of the most terrifying feeding methods in the ocean. Its size is deceiving, but its bite leaves lasting evidence.

The megalodon, a giant shark that went extinct some 3.6 million years ago, is famous for its utterly enormous jaws and correspondingly huge teeth. Recent studies have proposed that the megalodon was a ...

Ratfish developed "forehead teeth" called tenaculum for reproduction, offering rare insight into the flexibility of vertebrate evolution.

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 ...

Fans of the horror flick "Jaws" may remember 2018's "The Meg," where a prehistoric megalodon attacks a deep sea-submersible, preying on the crew inside. Although the movie did not receive favorable ...

The male ratfish has a unique, club-shaped appendage on its forehead, called a tenaculum, which it uses to cling to the ...

Shafeeg frequently posts spellbinding underwater footage to his nearly 65,000 followers on TikTok, where he is known as “The Shark Guy.” Shafeeg and his friend Carmen Canovas Cervello, 30, had ...