The researchers observed how closely carbon-13 and oxygen-18 isotopes found in the ancient shark’s fossilized teeth were bonded together — a data point that can reveal how warm the body was. From t…
Megalodon, one of the most fearsome sharks that ever lived, wasn’t the cold-blooded killer it’s made out to be — at least not literally.
The findings suggest this distinct trait played a key role in the ancient predator’s terrifying size — and its eventual disappearance.Believed to be at least 15 meters long, Otodus megalodon, also known as the megatooth shark, was one of the largestScientists previously theorized that megalodons were warm-blooded, but the new study is the first to provide concrete evidence to that effect.
Being warm-blooded may have been one of the key drivers fueling megalodons’ massive size and overall prowess as predators, according to senior study author Kenshu Shimada, a paleobiologist at DePaul University in Chicago.
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