Megalodon
Thinking of a shark especially the Great White Shark is enough to terrify you. If you think that the Great White was the largest and ferocious fish that ever existed you are in for a mistake. That position is held by Megalodon, the largest shark that ever existed on Earth. It is an extinct super predator with giant teeth as suggested by its name ( Megalodon in Greek means “Big Tooth”).This monster lived some 25 to 1.5 million years ago in the past. To increase its terrifying presence even further, a fully grown man can sit easily in its reconstructed, open mouthed,formidable fossil jaws. This shark had a length of upto 17 metres and if believed, grew even upto 20 metres making the Great White and even the Whale Shark which is currently the largest shark, puny in size compared to it. With such formidable jaws this beast had a massive bite force of 182,000 newtons which is five times more powerful than even Tyrannosaurus Rex. Armed with deadly teeth, powerful jaws, huge fins and a massive body this fish was undoubtedly the undisputed carnivorous king at its time in the oceans. However for all its advantages this monster went extinct when it was reigning supreme in the same way as the might dinosaurs. Some theories say that Climate cooling and Ice ages were one of the importnat reasons for the demise of the King of Sharks as Megalodon prefered warmer waters of the oceans. Another theory is that its food supply mainly consisting of some species of whales became extinct during the Pliocene period. Cannibalism during food shortage could have also contributed to its untimely demise.Also there is some hypothesis that some of these beasts did survive the extinction and still do exist in the deep, unknown waters of the oceans. If such is the case, then someday we can have a chance to view the most powerful shark that ever existed