There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth’s most massive land ...

A new study reveals Tyrannosaurus rex took 40 years to reach full size, not 30, as previously thought. Researchers analyzed ...

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

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

The new species shows the dinosaurs got bigger a lot earlier than scientists originally thought. It also supports the theory that T. Rex originated in North America, not Asia. Scientists recently ...

By counting visible and hidden rings, researchers found that T. rex did not reach full size until 35 to 40 years of age.

A new giant dinosaur was recently discovered in the Patagonia region of Argentina with short arms reminiscent of a Tyrannosaurus rex. Like the T. rex, which was one of the largest dinosaurs to have ...

A duckbill dinosaur%27s fossilized skull and hide bear healed marks of a predator attack The healed bite marks look like they came from a Tyrannosaurus Rex The find represents the first unequivocal ...

Almost a year ago, headlines proclaiming the sale of a largely complete T. rex-like dinosaur sparked an international custody battle that featured a confrontation at a public auction, a federal ...