The behemoth dinosaurs grew more slowly and had longer lifespans than previously thought, a new study suggests ...

The largest study ever conducted on the growth of Tyrannosaurus rex reveals that the dinosaur took a far longer and slower route to adulthood than scientists had previously believed.

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

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 ...

WASHINGTON, Dec 4 (Reuters) - Paleontologists for decades debated whether meat-eating dinosaur Nanotyrannus was actually just a juvenile Tyrannosaurus. But within a span of five weeks, the matter ...

(Reuters) - A rare fossil of an adolescent Tyrannosaurus rex has been excavated in North Dakota's badlands - a find noteworthy for the scientific insight it may offer into the life history of this ...

New estimate says dinosaur grew fast, could have reached 9 tons. Oct. 16, 2011 — -- Johnny Cash might have said life wasn't easy for a dinosaur named Sue. She grew up quick and she grew up mean, ...

One hundred years of Tyrannosaurus rex : the skeletons / Neal L. Larson -- Wyoming's Dynamosaurus imperiosus and other early discoveries of Tyrannosaurus rex in the Rocky Mountain West / Brent H.

For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of Tyrannosaurus rex to estimate how old the giant carnivores were when they died and ...

It turns out the mighty T. rex wasn't always so mighty! New research is shedding light on how long it took the "king of the ...

Steven Spielberg’s thrilling adaptation of Michael Crichton’s novel Jurassic Park came out at a time when new advances were being made in research about dinosaurs, causing the massive beasts to take ...