Now, a new study of 17 tyrannosaur specimens, ranging from early juveniles to massive adults, has revealed that the king of ...
Dinosaur bones are like trees—every year is represented by a new ring, and paleontologists can count those concentric circles ...
For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of ...
There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth's most massive land ...
A comprehensive analysis of Tyrannosaurus rex fossils is surprising scientists with just how long these apex predators took ...
Dr Holly Ballard and her team at Oklahoma State University studied leg bones from 17 different T.rex fossils to get a better ...
A study suggests that the Tyrannosaurus Rex reached its massive size over 40 years, contradicting earlier estimates of a ...
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T rex took 40 years to become fully grown
An analysis of growth rings in the leg bones of 17 Tyrannosaurus rex individuals reveals that the dinosaurs matured much more ...
By cutting into a tiny throat bone, Princeton's Chris Griffin showed that it belonged to an adult of a smaller tyrannosauroid ...
NEW YORK (AP) — 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 ...
For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of ...
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