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 ...

Megalodon may not be the picky eaters, as past examinations envisioned them to be. A new study published in Earth and Planetary Science Letters discusses how the voracious beast was eating varying ...

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 ...

Few prehistoric monsters capture the imagination quite like the megalodon. From natural history museums to the silver screen, this colossal shark, which went extinct over three million years ago, has ...

Shark biologists now say a lemon shark, like this one, is a better model of the extinct megalodon's body than the great white shark. The megalodon has long been imagined as an enormous great white ...

Maryland lawmakers voted to designate the massive, prehistoric megalodon as the state's official shark. The passed legislation makes Maryland the first state to name an official shark.

Body size estimates of some of Earth’s larger-than-life species may have been just that: a little bit too large for real life. That’s just one example. Size estimates of many of the planet’s extinct ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. When we think about the scope of our world’s diversity, ...