Dinosaur bones are like trees—every year is represented by a new ring, and paleontologists can count those concentric circles ...
Newser on MSN
T rex took 4 decades to reach full giant size
Tyrannosaurus rex, it turns out, may have taken its time becoming king. A new analysis of 17 tyrannosaur fossils suggests the ...
New Scientist on MSN
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 ...
The Tyrannosaurus rex is often shown baring massive, sharp teeth, like the ferocious creature in "Jurassic Park." But new research suggests that this classic image might be wrong. The teeth on T. rex ...
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