Dinosaur bones are like trees—every year is represented by a new ring, and paleontologists can count those concentric circles to determine a fossil’s age. Previous estimates put T. rex’s lifespan at ...

Ask a college student to sketch a Tyrannosaurus rex, and he or she will probably draw an upright, tail-dragging creature with tiny arms. An 8-year-old will draw something similar. They’re wrong, of ...

When you hear the word "dinosaur," the first thing that might spring to mind is a hulking skeleton like Sue the T rex in ...

A century ago, scientists unearthed fossils of a gigantic carnivorous dinosaur bigger than Tyrannosaurus rex in the Sahara desert, but until recently, paleontologists thought the fearsome beast was ...

Pioneering techniques used in this research may soon be applied to other dinosaur fossils and alter the course of ...