Megalodons might have been longer and thinner than previously thought, according to a new study. The enormous, extinct sharks, scientists now say, grew to between 54 and 80 feet long and weighed about 94 tons.

New study suggests megalodons may have grown 15 feet longer than some previous estimates, had enormous babies, and didn't look like supersized great white sharks.

Everyone's favorite prehistoric shark may have been much sleeker and much larger than previously thought. A new study suggests that the megalodon wasn't as stocky as the great white shark, and that it could have reached over 24 m (80 ft) in length.

Researchers refined their size estimates of the prehistoric shark by studying the bodily proportions of 165 other shark species.