The Economic Times

T. rex was closer to a bird than a crocodile in body temperature? New fossil tooth study reveals how the dinosaur survived Arctic winters and hunted across North America

Scientists determined Tyrannosaurus rex had a body temperature around 97.3 degrees Fahrenheit. This was calculated by analyzing chemical signatures within the dinosaur's fossilized tooth enamel. The research suggests T. rex was warmer than crocodiles and more active in colder climates. This warm-blooded nature implies higher energy needs and constant hunting for sustenance. The findings offer new insights into dinosaur evolution and their survival capabilities.