Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Tyrannosaurus rex is arguably the world’s most famous dinosaur ...

Add Yahoo as a preferred source to see more of our stories on Google. FILE PHOTO: A girl looks at the skull of Tyrannosaurus rex "Tristan Otto," one of the most complete specimens worldwide, during ...

Tyrannosaurus rex lived longer and took more time to reach its maximum size than previously thought, according to a new study. Scientists have long counted annual growth rings in fossilized ...

Tyrannosaurus rex was a late developer who kept growing until the age of 40, reveals new research. The largest-ever study of how the “king of dinosaurs” grew shows a much longer, slower path to ...

For decades, paleontologists have debated whether a small tyrannosauroid skull found in 1942 belonged to a juvenile T. rex or was a full-grown member of a previously unknown species, eventually dubbed ...