A worthy matchup of big teeth, little brains. Picture this: Two dinosaurs with massive teeth and hulking figures circle each other, threatening a smackdown. Each was the most successful predator of ...

Tyrannosaurus rex is one of the most recognizable names of the dinosaur world, a hulking and terrifying meat-eating behemoth.

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 ...

NEW YORK – 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 ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of an adult Nanotyrannus attacking a young T. rex. In the latest episode of a long-standing debate over the ...

Dinosaurs haven’t roamed the Earth for millions of years, but the nature of their reign has sparked no shortage of controversial debates among paleontologists that remain unresolved today. Late last ...

For decades, dinosaurs, especially the Tyrannosaurus rex, have captured the imaginations of the public and paleontologists alike. In many instances, pop culture has depicted the T. rex as the giant ...

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 ...

A group of researchers has estimated how long it took tyrannosaurus rex to reach its full size — and the time period is significantly longer than scientists previously believed. The dinosaur is ...

Ankylosaurus vs T-rex. The Dinosaurs, narrated by Morgan Freeman, is now playing on Netflix.