A group of researchers has estimated how long it took Tyrannosaurus rex to reach its full size — and the time period is ...

A newly discovered raptor had a knobby bump on its head, suggesting that, like some larger dinosaurs, it engaged in ...

Scientists have discovered a species of dinosaur that roamed between Australia and Antarctica 113 million years ago. The discovery of Diluvicursor pickeringi, published Thursday in the biological and ...

Argentina has recently become a locus for weird dinosaur fossils. Last year, paleontologists in the country found dinosaur bones so big, they believe they may have belonged to the largest land animal ...

The meat-eating dinosaurs known as theropods that roamed the ancient Earth ranged in size from the bus-sized T. rex to the smaller, dog-sized Velociraptor. Scientists puzzling over how such wildly ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SYDNEY (Reuters) — Scientists have confirmed ...