On the semiannual cleaning days, visitors get a surprise glimpse behind the curtain at a leading public attraction. And Sue, 42 feet long, the most complete T. rex skeleton ever found, gets to glisten ...

“The T. rex was built to fight like that; the Spinosaurus really wasn’t,” he said. This diversity of feeding strategies explains how multiple giant predators could share the same ecosystems without ...

Scientists have identified a previously unknown 86 million-year-old dinosaur species that fills an early gap in the fossil record of tyrannosaurs, revealing how they evolved to become massive apex ...

WASHINGTON, Aug 15 (Reuters) - 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.