WASHINGTON (Reuters) - Surmising even the physical appearance of a dinosaur - or any extinct animal - based on its fossils is a tricky proposition, with so many uncertainties involved. Assessing a ...

J. kaniukura may look like an armored T-Rex in some regards, but this armored dinosaur is actually a herbivore. And, despite its close resemblance to carnivores and a body make-up more likely to be ...

A controversial dinosaur fossil previously believed to be a juvenile Tyrannosaurus rex is in fact a different species altogether — the Nanotyrannus — a new study suggests. The research has up-ended ...

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 ...

Scientists identified a new species of Tyrannosaurs that's likely a predecessor to T. Rex. The new species shows the dinosaurs got bigger a lot earlier than scientists originally thought. It also ...

A partnership of companies has announced that it plans to make luxury fashion accessories out of Tyrannosaurus rex "leather" — but researchers say it won't be the real deal. The T. rex leather will be ...

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 ...

Sure, we've all seen the monstrous T. rexes running amok in "Jurassic Park" and other movies. It turns out they weren't all huge behemoths: In a study published Monday, scientists announced the ...

A group of companies and bioresearchers say they’ll use “leather” made from the lab-grown skin of a T-Rex to fashion luxury, “cruelty-free” purses. The project — led by genomic engineering outfit The ...

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 ...