Around 100 million years ago, male dinosaurs entered a "mating arena" in Colorado and danced their hearts out to attract females, a new study suggests. Researchers uncovered a series of mating display ...

(CNN) — The direct ancestor of Tyrannosaurus rex would have arrived in North America after crossing a land bridge from Asia, according to a new study. The report is the latest to weigh in on the ...

A newly identified dinosaur species from Mongolia is rewriting the history of the T-rex family tree. Dubbed the “Dragon Prince” (scientifically named Khankhuuluu mongoliensis), this prehistoric ...

Paleontologists have identified the closest-known ancestor to giant T. rex among fossils originally unearthed in Mongolia in the 1970s. Meet Khankhuuluu mongoliensis, a newly identified early ...