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 ...

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 ...

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.

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 ...

A shark so rare it was once thought to be extinct was just spotted off the Welsh coast. The Wildlife Trust of Wales captured footage of the angel shark in Cardigan Bay, the first documented sighting ...

Otodus megalodon, the biggest shark of all time, has long captured the imaginations of paleontologists and the public alike. Scientific fascination spawns from the sheer enormity of their fossilized ...

The Discovery Channel has been in deep chum all week over opening their annual Shark Week with a special called Megalodon: The Monster Shark Lives. Those looking to tune in to see an exploration of ...

Would you ever venture into the ocean if you knew this creature could be lurking beneath you? It's twice the size of a T. rex ...

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 ...

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 ...