T. Rex Had a Body Temperature of 97 Degrees

Scientists have made a new estimate of the body temperature of Tyrannosaurus rex, a carnivorous dinosaur that lived around 68 to 66 million years ago. The study, published in the journal Science Advances, used a new method to calculate the dinosaur's body temperature. The researchers used a technique called woodwardian analysis, which involves measuring the ratio of oxygen isotopes in the dinosaur's bones. This method is more accurate than previous methods, which relied on the presence of certain proteins or the composition of the dinosaur's teeth. The estimated body temperature of T. rex is around 97 degrees Fahrenheit, which is slightly lower than the estimated body temperature of modern birds, which is around 103 degrees Fahrenheit. The study's authors suggest that the lower body temperature of T. rex may be due to the dinosaur's size, as larger animals tend to have lower body temperatures than smaller animals. The study's findings have implications for our understanding of the evolution of dinosaurs and the biology of their metabolism.