"Our results show that the shape of shark teeth changes gradually and subtly during the shark's life: The teeth become larger on the one hand and more complex on the other" , Türtscher says. As such ...

The ocean’s ultimate predator once hunted whales with ease. Here’s why the world’s biggest shark eventually vanished off the ...

Fossils reveal that giant predatory sharks existed 15 million years before megalodon and were already top predators in Cretaceous seas.

Want to know what a sand tiger shark has been eating? Look to its teeth. Peter Pinnock / Alamy Stock Photo This article is from Hakai Magazine, an online publication about science and society in ...

Recently, we dove deep on the world’s smallest shark (the dwarf lanternshark) and now we’re swinging to the other end of the shark size spectrum to look at the world’s largest fish. The whale shark is ...

Tens of million years ago, sand tiger sharks hunted in the waters off the Antarctic Peninsula, gliding over a thriving marine ecosystem on the seafloor below. All that remains of them today is their ...

A peculiar dental condition known as shark teeth is gaining increased attention from parents and pediatric health care professionals across the United States as more families encounter the startling ...

Tom Pierce’s hands move with precision as he wraps each black shark’s tooth with wire, laying them in a row on the glass counter. The process only takes a few minutes to create each piece of jewelry, ...

The 3-inch long teeth are on display at the Melbourne Museum. No, this isn't a publicity stunt for the new movie "Meg." A teacher and fossil enthusiast found a giant set of prehistoric shark teeth ...