Dinosaur bones are like trees—every year is represented by a new ring, and paleontologists can count those concentric circles ...

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

Tyrannosaurus rex is arguably the world’s most famous dinosaur, yet paleontologists are still learning more about this giant ...

For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of ...

UNDATED (WKRC) - The king of dinosaurs is earning its name 66 million years after extinction. A new study published in the Ecology and Evolution journal has uncovered the possibility that the ...

Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type of dinosaur? At first, researchers had only a tyrannosaur skull to ...