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

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. Paleobiologist Dr ...

The megalodon is a prehistoric ancestor of the modern-day shark, and just like it preceded the shark, National Megalodon Day precedes Shark Week. National Megalodon Day is June 15. The Discovery ...

For decades, the giant ancient shark Otodus megalodon has loomed in our imaginations as a horror of the ancient seas — an enormous, meat-seeking missile evolved to annihilate whales and nothing less.

It's the largest shark that's ever lived on Earth against a monstrous whale who terrorizes its prey. Would the megalodon ...

Megalodons were the biggest sharks on the planet. Recent studies show how these apex predators reached lengths of 50 feet with heads the size of cars.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Few prehistoric monsters capture the ...

VENICE, Fla. - A recent diving trip off the coast of Florida resulted in an ancient discovery. Kristina Scott found a 6-inch megalodon shark tooth while fossil diving in Venice. She said she's been ...