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CNN —Megalodons, the huge prehistoric sharks depicted in movies such as “The Meg,” had more slender bodies than was previously thought, according to a new study. Many mysteries remain about the biology of megalodons, but until now, great white sharks had been used to model their appearance. The dark grey silhouette depicts the previously reconstructed body form, based on the great white shark. Kenshu Shimada/DePaul UniversityThis new research is based on the reappraisal of an incomplete set of fossil vertebrae found in Belgium. The research suggests that “the modern great white shark may not necessarily serve as a good modern analog for assessing at least certain aspects” of megalodon biology, said Shimada.
Persons: CNN — Megalodons, Meg, , Kenshu Shimada, Phillip Sternes, megalodons, megalodon, Shimada, ” Shimada, Organizations: CNN, DePaul University in, University of California, DePaul University Locations: DePaul University in Chicago, Riverside, Belgium
Scientists previously theorized that megalodons were warm-blooded, but the new study is the first to provide concrete evidence to that effect. From this finding, they deduced the megalodon’s average body temperature was about 27 C (80 F). Like modern great white and mako sharks, megalodons were regionally endothermic, which means they had the ability to regulate temperature in certain parts of the body, according to the study. The timing of megalodons’ extinction coincides with the cooling of the Earth’s temperature, the researchers said. But learning more about the ancient shark could still help scientists better understand the threats similar marine animals face today.
Persons: CNN —, it’s, , megalodon, Robert Eagle, Kenshu Shimada, ” Shimada, Megalodon, Michael Griffiths, ” Griffiths Organizations: CNN, National Academy of Sciences, UCLA, Eagle, DePaul University in, William Paterson University Locations: megalodon, DePaul University in Chicago, , Megalodon, New Jersey
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