Fossil tooth analysis confirms Tyrannosaurus rex was warm-blooded Gulf Coast News and Weather T. rexes were as warm-blooded as elephants, study finds CBC T. Rex, King of the Dinosaurs, Had a Body Temperature of 97 Degrees The New York Times T. rex’s teeth reveal the dinosaur’s body temperature for the first time CNN Scientists have discovered the body temperature of the Tyrannosaurus rex ctvnews.ca