The ferocious predator dominated the ancient landscapes of the late Cretaceous period, around 68 to 66 million years ago.
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The Tyrannosaurus rex May Have Had More Brains Than You Think
CT scans reveal that dinosaurs were airheads
World's Scariest Dinosaur, MAD Life Entertainment
The secret to T. rex's incredible biting force is at last revealed
From Brains to Brawn: How T. Rex Became King of the Dinosaurs
How T. Rex Became a Global Paleo-Celebrity - WSJ
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Is it true that the T-Rex dinosaur has a brain the size of a hazelnut? - Quora
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Was Tyrannosaurus rex a Ferocious Predator or a Wimp? · Frontiers for Young Minds
T-Rex may not have big brain energy — but it might have been smarter than previously thought