Megalodon were considered to be the biggest shark ever on this world which were extinct about 1.5 million years ago, but still there are some fiction stories that some of them might remained alive but hidden and may be revealed after some time.
The biggest shark on earth Megalodon
These were the most powerful predators swimming in oceans they could be as long as 16 meters and could weight about 47 metric tons, they can be taken as bulkier version of great white shark.
No doubt megalodon was biggest shark on this universe about twice the size of Great white Shark.
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