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Friday, March 24, 2023

Which animals have the strongest chew?

The saltwater crocodile (Crocodylus porosus) has the very best chew drive of any animal alive right this moment. (Picture credit score: DianaLynne by way of Getty Photos)

Tyrannosaurus rex and megalodon are repeat science fiction stars for a cause: Their bites have been ferocious. However which extinct and dwelling creatures truly exert the strongest chew drive? 

Chew drive, in response to a examine revealed in Frontiers (opens in new tab), is the drive that the muscle groups and bones of the higher and decrease jaw generate when an animal bites. Animals with robust chew forces often don’t have any downside clamping down on struggling prey. Some predators are even in a position to break by means of prey with particularly robust armor.

Of all of the creatures alive right this moment, the saltwater crocodile (Crocodylus porosus) has the strongest recognized chew drive, at 16,460 newtons (newtons measure drive magnitude), a 2012 examine within the journal PLOS One (opens in new tab) discovered. For comparability, 1 newton equals a few quarter pound of drive. No matter results in the jaws of a saltwater crocodile is subjected to excessive drive throughout its dying gasps.

Paleobiologist Gregory M. Erickson measuring an alligator’s chew drive. (Picture credit score: Photograph by: Gregory M. Erickson by way of Florida State College)

There are two contenders that would problem — and probably beat — the croc, however their chew forces haven’t been measured in a stay setting as a result of these animals are aquatic predators. If confirmed, the strongest chew drive may very well be that of the orca (Orcinus orca), estimated at 84,516 newtons by the Dutch Shark Society (opens in new tab), distantly adopted by the chew drive of a nice white shark (Carcharodon carcharias), at about 18,000 newtons, in response to laptop fashions utilized in a 2008 examine revealed within the Journal of Zoology (opens in new tab).

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