Watch the video above to see how big the megalodon's tooth compares to that of a great white shark. You can also see how big it is in the photo below! Which has a stronger bite? A T-Rex or the ...

In fact, a T-rex would have been a quick snack for megalodon. Its head would have easily fit inside the gargantuan shark's mouth.

The new research out today in Proceedings of the National Academy of Sciences suggests that the megalodon’s warm-bloodedness may have contributed to its extinction. “Maintaining an energy ...