New discovery shows T-rex's bite could make bones 'explode'

Postado Mai 19, 2017

"Through incredible, almost 8,000-pound bite forces and record-breaking, 431,000 pounds per square inch tooth pressures, T. rex regularly scored, deeply punctured, and even sliced through bones", said Paul Gignac, the study's co-author. To put that into context, its bite could crush three small-sized cars.

"T. rex could pretty much bite through whatever it wanted, as long as it was made of flesh and bone", said Florida State University paleobiologist Gregory Erickson.

The study, by Gregory Erickson, professor of biological science at Florida State University, and Paul Gignac, assistant professor of anatomy and vertebrate paleontology at Oklahoma State University Center for Health Sciences, was published in Scientific Reports.

Their long, conical teeth generated an astounding 431,000 pounds per square inch.

In a study newly published in the journal Scientific Reports, researchers report that T. rex was capable of biting down with nearly 8,000 pounds of force, with parts of certain teeth delivering a shocking 431,000 pounds per square inch of pressure.

Tyrannosaurus Rex - one of the world's most well-represented and large theropods, is spotted having the most powerful biting capacity than any animal of the world could ever have, and researchers have stunned after witnessing this never-before-seen biting power of a dinosaur.

The process is slightly different for carnivorous dinosaurs, as they were characterized by having vast lateral teeth, sometimes over 6 inches long in the case of the T. rex.

To figure out how the dinosaur managed to snap bones into fragments, Gignac and Erickson constructed a computer model of a T. rex jaw. The massive saltwater crocodile - which grows to 17 feet and can weigh more than ton - that lives on the coasts of southeast Asia and northern Australia chomps down with a bite measured at around 3,700 pounds of force.

To understand how the giant dinosaur consumed bone, researchers also needed to understand how those forces were transmitted through the teeth, a measurement they call tooth pressure. By comparison, the human bites are only about 200 pounds. Well, in real life, the T. rex had the biggest teeth of any dinosaur. That's thanks to the right combination of biting power plus blunt teeth that were serrated like steak knives, says Erickson.

For this research, the team, from Florida State University, build on previous models they had created to study how the musculature of living crocodilian species contribute to bite forces. One 2012 Biology Letters study, for instance, reported that T. rex bit with 5,443 kilograms of force.

So let's say you're walking down the street, minding your own business, when a T-Rex that escaped from Isla Nublar spots you and decides you'd make a tasty snack. Furthermore, previous studies on fossilized T. rex stool, also known as coprolites, show that they also enjoyed highly acidic stomach fluids, which allowed them to digest whole carcasses just like crocodiles do.

Despite its enormous bite force, the T. rex isn't the most powerful biter in the history.