T. Rex Had Human-Like Body Temperature, Study Suggests Fast-Running Predator

For more than a century, Tyrannosaurus rex has loomed in the human imagination as a creature of mystery — fearsome in form, but uncertain in nature. Now, through the quiet testimony of fossilized teeth, science has answered one of paleontology's oldest debates: the great predator was warm-blooded, burning internally at roughly 97 degrees Fahrenheit, a temperature indistinguishable from our own. This revelation does not merely revise a fact about a long-extinct animal — it redraws the boundary between the ancient world and the living one, suggesting that the age of dinosaurs was far more energe