In August 1990, fossil collector Sue Hendrickson stumbled upon the world's most complete T. rex fossil. The specimen was ...

Named the “king of the tyrant lizards,” T. rex was built to rule. Find out how these dinosaurs lived, what made them so ...

Add Yahoo as a preferred source to see more of our stories on Google. For years, the "dueling dinosaurs" in a North Carolina museum were believed to be a Triceratops and Tyrannosaurus rex. However, an ...

Owning a piece of dinosaur history is looking to get especially pricey. This week, a Tyrannosaurus rex skeleton nicknamed “Gus” became the most expensive dinosaur fossil ever sold at auction. On ...

Bids on "Gus" will start at $19 million, a steep price for public institutions. Specimens in private collections can be harder for researchers to examine, and they're practically impossible to include ...

The T. rex nicknamed "Gus" shattered auction records after a 10-minute bidding war among seven bidders, but the debate over its future rages on.

What if everything we know about T. rex growth is wrong? A complete tyrannosaur skeleton has just ended one of paleontology's longest-running debates—whether Nanotyrannus is a distinct species, or ...

Tyrannosaurus rex is one of the most recognizable names of the dinosaur world, a hulking and terrifying meat-eating behemoth. While fossil remains have been extensively studied, not much is known ...

Once a scientifically important fossil enters a private collection, access for researchers is no longer guaranteed, says this paleontologist.