A new specimen of one of the most controversial species of dinosaur has the potential to overturn decades of research on the ...

Scientists have unveiled Khankhuuluu, a new Mongolian dinosaur species that predates and closely resembles early Tyrannosaurs ...

How did these different dinosaur species interact? Did they hunt different prey? What did T. rex adolescence really look like ...

For decades, paleontologists debated whether fossils were of a young T. rex or a species called nanotyrannus. A new study ...