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, ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. The ocean’s ultimate predator once hunted whales with ease.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. What scientists ...