Fifteen million years ago, now-extinct species of dolphins, whales and large sea cows roamed the world’s oceans, topping the underwater food chain. Yet back then, any one of these creatures could ...

Phillip Sternes, a shark biologist from the University of California, Riverside, led a team that re-evaluated these ...

The true size of a gigantic prehistoric megalodon shark that ruled the oceans millions of years ago has been revealed for the first time -- and it had teeth as big as hands, and a fin as tall as a ...

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

The mighty megalodon remains the most iconic extinct shark in history, remembered for its gigantic jaws and awe-inspiring bulk. Because its body was made mostly of cartilage, only its enormous teeth ...

The biggest, most formidable shark to have ever roamed the ocean may have been even larger than previously thought, according to a new study. The research, published Sunday in the journal ...

Like sharks, megalodon had skeletons mostly made of cartilage, so we don’t have many fossil remains to go on besides ominous piles of huge, sharp teeth and a few vertebrae. That means scientists are ...

Megalodon teeth are the largest of all shark species. With teeth that can measure up to the size of a human hand, it is easy to imagine just how enormous these ancient sharks were. However, there is ...

In the age of dinosaurs — before whales, great whites or the bus-sized megalodon — a monstrous shark prowled the waters off what's now northern Australia, among the sea monsters of the Cretaceous ...

A humungous shark that lived 115 million years ago surpassed the size of modern-day great whites, paleontologists discovered ...

A new study proposes that the massive ancient shark was built more slenderly than a great white. But not all paleontologists agree. This illustration of megalodon may be wrong. The ancient predatory ...