T. rex had huge growth spurts, but other dinos grew ‘slow and steady’

Paleontologist Tom Cullen cutting into SUE the T. rex’s thigh bone to learn how T. rex grew. Credit: © David Evans Tyrannosaurus rex was one of the biggest meat-eating dinosaurs of all time—it measured up to 42 feet long from snout to tail and would have weighed in at around 16,000 pounds. And it wasn’t […]

Cretaceous cold case of ‘dueling’ T. rex and Triceratops may finally be solved

The “Dueling Dinosaurs” fossils — the 67 million-year-old remains of what may be the most complete Tyrannosaurus rex and Triceratops on record, beasts that were possibly locked in combat when they died — are finally spilling their secrets. The iconic fossils are heading to the North Carolina Museum of Natural Sciences (NCMNS), where a cutting-edge […]

Sue the T. rex had a terribly painful infection when she died

Sue, the mighty Tyrannosaurus rex whose skeleton is one of the most complete ever found, likely suffered from a big toothache due to three tiny, weird-looking teeth.  “Two of these teeth are actually fused together,” said study lead researcher Kirstin Brink, an assistant professor in the Department of Geological Sciences at the University of Manitoba […]