Five different groups of predatory dinosaurs independently evolved disproportionately small arms, and it seems they did so ...

The evolution of tiny arms in several groups of meat-eating dinosaurs was likely driven by the development of strong, ...

New study explains why T rex had such tiny arms: ‘The head took over’ - Researchers say giant head adaptations in dinosaurs ...

Why did T. rex have such tiny arms? Scientists now think it’s because its giant head became the ultimate hunting tool. Across ...

Tyrannosaurus rex is often called the scariest and most feared dinosaur to ever walk the Earth, but science still debates ...

A team of researchers, including those from the New Mexico Museum of Natural History and Science (NMMNHS), say the discovery of a new dinosaur subspecies is believed to be a more primitive and older ...

Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type of dinosaur? At first, researchers had only a tyrannosaur skull to ...

Cara Tabachnick is a news editor at CBSNews.com. Cara began her career on the crime beat at Newsday. She has written for Marie Claire, The Washington Post and The Wall Street Journal. She reports on ...

“When you come for the king, you best not miss,” said New Scientist – “particularly if the king in question” is Tyrannosaurus rex, a nine-tonne dinosaur with “the biggest teeth of any known land ...