About 23 million years ago, one of the most voracious predators that has ever travelled the oceans of the Earth appeared: the megalodon. This nightmarish shark, the largest of all time, was almost 20 meters long, three times the size of white sharks, and weighed 50 tons. No wonder he continues to fascinate both scientists and the film industry, which even made him last summer the protagonist of a box office success of those to consume with popcorn.
Although most researchers believe that the...
http://www.maritimeherald.com/2018/is-the-megalodon-still-alive-the-most-gigantic-shark-of-all-time/