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

A barnacle-covered tooth found off the North Carolina coast counts as one of the largest megalodon shark teeth ever ...

The curious minds at What If explore what would happen if the Megalodon shark fought the Mosasaurus.

Megalodon, the terror of the Neogene, dominated its giant shark niche for just 20 million years before it disappeared from the world's oceans. And, during that time ...

Megalodon’s enormous size is estimated from limited fossils, including vertebrae and teeth. (lexaarts/Creatas Video+/Getty Images Plus) In 1978, a wonder emerged from the crumbling earth of the Gram ...

A set of giant Megalodon vertebrae that vanished for decades has been rediscovered in Denmark, confirming that this prehistoric shark may have reached at least 79 feet in length.

The megalodon went extinct 3.6 million years ago, and is thought to be the largest shark that ever swam the Earth. But the megalodon may not have been as big as once thought, some researchers suggest.

A new study shows the Megalodon, a gigantic shark that went extinct 3.6 million years ago, was more slender than earlier studies suggested. This finding changes scientists' understanding of Megalodon ...

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 ...

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

A museum curator gives a sense of scale to the reconstructed jaws of the fossil shark Otodus megalodon. Rick Meyer / Contributor via Getty Images In the more than 400 million years that sharks have ...

Since Steven Spielberg's “Jaws” in 1975, sharks have boasted a serious pop culture bite. But when it comes to dealing with a trendier toothy menace ... well, we’re going to need a bigger boat. The ...