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 ...

It also likely weighed an estimated 94 tons, comparable to a large blue whale, but with a body designed for energy-efficient cruising rather than continuous high-speed pursuit. "This study provides ...

The Meg was shaped more like a whale than the giant great white shark in the Jason Statham movies, suggests new research. Megalodon, the prehistoric ocean hunter, was a "longer, sleeker super predator ...

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 ...