Debate kicked off in 1988 when a single small tyrannosaur skull discovered four decades earlier was given its own species ...

An old dinosaur debate gained new traction after a new study's findings suggesting that miniature versions of the famed Tyrannosaurus rex may actually be a distinct species. Researchers from the ...

The Tyrannosaurus rex seemingly came out of nowhere tens of millions of years ago, with its monstrous teeth and powerful jaws dominating the end of the age of the dinosaurs. How it came to be is among ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Tyrannosaurus rex, whose name translates to the tyrant lizard king ...

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 ...

Researchers say they have identified a new species of Tyrannosaurus that traces the dino's lineage to North America much earlier than previously thought, and could shed new light on the murky origins ...

What if everything we know about T. rex growth is wrong? A complete tyrannosaur skeleton has just ended one of paleontology's ...

More than 66 million years ago, a “tyrant lizard king” ruled western North America: the fearsome predatory dinosaur Tyrannosaurus rex. But how large was this monarch’s royal family? Could what we call ...

For decades, scientists have disagreed about where the mighty Tyrannosaurus rex truly came from. Many fossils of T. rex have ...

A team of researchers published a rebuttal to an argument advanced by another group earlier in the year. The disagreement over the king of dinosaurs is far from over. By Jack Tamisiea The world’s most ...