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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Roaming the ancient seas eons ago, the megalodon shark eviscerated its prey with jaws that were 10 feet wide. Warpaintcobra/iStock ...

Fifty years after Jaws hit theaters, and there’s still a lot we don’t know about sharks, which lends to their reputation as mysterious predators. There’s even more we don’t know about ancient sharks, ...

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 ...

Megalodon, a giant prehistoric shark, ruled the oceans millions of years ago. The conventional view of megalodon as simply a ...

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 ...

It’s not Shark Week yet, but National Megalodon Day is the next best thing until the Discovery Channel kicks off its shark love fest on July 20. National Megalodon Day is June 15 and celebrates the ...

The program, "Megalodon: The Monster Shark Lives," opened Discovery's annual "Shark Week" during the weekend. With an estimated 4.8 million viewers, it had the largest audience of any show in the 26 ...

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 ...