rex by analyzing tiny samples of fossilized enamel. Here is what they discovered. New geochemical analysis of fossilized Tyrannosaurus rex teeth has provided the first definitive temperature reading for the iconic predator, revealing a body heat of...

cache includes a remarkably well-preserved partial skeleton of Tarbosaurus bataar, a formidable relative of the Tyrannosaurus rex that once dominated the prehistoric landscapes of Central Asia. Mongolia is recognized globally for its rich...

predator moved 66.5 million years ago. Paleontologists have uncovered an exceptionally rare window into the life of a Tyrannosaurus rex: a 66.5-million-year-old series of four fossilized footprints discovered within the Hell Creek Formation in North...

that roamed the planet at the close of the Cretaceous, shared its ecosystems with contemporaries such as Triceratops and Tyrannosaurus rex. Confirmation of soft‑tissue retention would unlock biological insights unattainable from bone alone, shedding...

of the park’s failing infrastructure. The third was a sharp, four-note motif associated with apex predators like the Tyrannosaurus rex and the Velociraptors. However, Williams and director Steven Spielberg were careful not to over-rely on these cues. In...

theropod dinosaur. While a definitive identification remains challenging, experts suggest that creatures such as Tyrannosaurus rex or Nanotyrannus are plausible candidates given the ecosystem composition of the Hell Creek region at the time....

occupy a paradoxical branch on the theropod family tree, sharing a common ancestry with apex predators like Tyrannosaurus rex while having evolved to subsist entirely on plants or a specialized mixed diet. Their morphology is a striking collage of...