The exact size of Megalodon is a matter of debate. Paleontologists have produced estimates (based mostly on analogies with modern Great White Sharks) ranging from 40 to 100 feet, but the consensus now is that adults were 55 to 60 feet long and weighed as much as 100 tons.
Megalodon
The biggest prehistoric shark that ever lived. More about Megalodon
Megalodon
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