How big was the Tyrannosaurus rex? Learn how, even though they may not have been the largest theropod, they’re definitely one ...

Scientists have unveiled a previously unknown tyrannosaur species that fundamentally changes our understanding of how the mighty Tyrannosaurus rex evolved. The newly identified dinosaur, named ...

The Tyrannosaurus rex is often shown baring massive, sharp teeth, like the ferocious creature in "Jurassic Park." But new research suggests that this classic image might be wrong. The teeth on T. rex ...

A new study of long-debated dinosaur fossils has found growth patterns inconsistent with those of T. rex, suggesting the bones belong to a distinct species, but other experts aren't convinced. When ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. New research is throwing some cold water on the idea that the ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Real predatory dinosaurs like the infamous Tyrannosaurus rex may ...

Picture a Tyrannosaurus rex, that ferocious yet one of the most beloved dinosaurs. Most people will probably imagine a scaly giant with enormous fangs, visible even when its mouth is closed. This is ...