According to a recent paleontological study, the most feared of all dinosaurs was of course the infamous Tyrannosaurus rex and that’s because it had some amazing teeth. Its teeth gained it the title of king of the dinosaurs and a new research explains what made the T-rex so ferocious.
The new study was conducted by a team of paleontologists from the University of Toronto Mississauga and was published in the journal Scientific Reports. According to the research, the theropods, which is the group that includes the Tyrannosaurus rex, had teeth that were serrated and saw-like. The dinosaur’s teeth helped it bite into the flesh of its prey and penetrate it to the bone. This is one of the factors that made the Tyrannosaurus rex such a feared and powerful hunter, said the researchers.
Kirstin Brink, one of the paleontologists who wrote the study, explained that the scientists who analyzed the teeth of Albertosaurus, also a theropod, back in the 1990s, wrongly believed that the cracks in the teeth were due to damage. Brink added that after sectioning and analyzing teeth from eight other species of arthropods she found that all the theropods had the same teeth structure, and they were not cracks.
According to the dinosaur experts, the Tyrannosaurus rex had teeth with the same structure as steak knives. Also, they were very big- more than 9 inches long. The new study revealed that the serrations of the teeth went deep and helped keep them strong and prevent any damage.
Robert Reisz, another one of the researchers who conducted the study, said that when the dinosaur lost a tooth, a new one would grow back. Unlike humans, the Tyrannosaurus rex grew new teeth all throughout its life.
Brink said that although a new tooth would grow back, it took quite a long time to replace the old one. Tyrannosaurus rex and other theropods would have to wait up to two years for a new tooth to grow back. Because it always had teeth in their mouths, these species of dinosaurs were more efficient eaters, compared to other animals of their times. The only living animal that has a teeth structure similar to that of the theropods is a species of reptile called the Komodo dragon, which also feeds on large animals.
The researchers say the new study suggests that the Tyrannosaurus rex could handle its prey more efficiently than it was previously assumed, thanks to its teeth structure.
Image Source: voanews