A broken T. rex tooth found in another dinosaur's tail bone offers the first hard evidence that the king of all meat-eating beasts hunted live prey, US paleontologists said Monday.
Mongolia may need to rustle up some more glass cases for its first dinosaur museum after US authorities announced Friday they will hand back a large new collection of stolen fossils.
Scientists say they have proof that the Tyrannosaurus rex, the dinosaur adored by children and makers of plastic toys, had the most powerful bite of any creature that lived on land.
WASHINGTON — Ferocious, meat-eating dinosaurs were equipped with night vision that helped them stalk their prey in the dark, according to a study published Thursday in the journal Science.