Researchers uncovered blood vessels in Scotty, the largest T. rex fossil. High-powered x-rays revealed mineralized tissues that deepen our understanding of dinosaur biology. Although much of modern ...

A 66-million-year-old Tyrannosaurus rex skeleton named 'Trinity' was auctioned at Koller Auctions in Switzerland. Measuring 3.9 meters high, 11.6 meters long, and 2.65 meters wide, the skeleton is ...

Tyrannosaurus subdued prey with raw power, using bone-crushing bite force. But other meat-eating dinosaurs that rivaled T. rex in size used different approaches. Giganotosaurus relied more on slashing ...