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

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.

Teeth and the evolution of teeth have long fascinated researchers in all manner of species. Questions arise, such as why they evolved, why they were lost, and even in some cases, why they evolved ...

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, ...

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

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 ...

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

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 ...

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 ...