Megalodon usually gets all the attention when it comes to sea monsters, but ancient oceans were full of predators just as strange and scary. Fossils tell us that long before modern sharks ruled the ...

Great white sharks are already massive, but scientists use their teeth to estimate just how big they can get—and those same methods help unlock the mystery of the megalodon, the colossal predator that ...

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 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 ...

Games use the allure and terror of the ocean to introduce terrifying undersea creatures. From prehistoric sharks to massive eldritch creatures, ocean games provide a ...