The ferocious predator dominated the ancient landscapes of the late Cretaceous period, around 68 to 66 million years ago.
This is what T. rex probably looked like as a baby
Reconstructing a digital model of spinosaur brain
T-rex was as smart as the modern day primates, study claims - Interesting Engineering
Inside the brain of T. rex: the most fearsome of dinosaurs was smarter than you might think - YP
Smartest dinosaur ever - A-Z Animals
Inside the brain of T. rex: the most fearsome of dinosaurs was smarter than you might think - YP
The T. rex may have been a lot smarter than you thought : r/Dinosaurs
The Daunting Task of Measuring Dinosaur Intelligence
What do you think of T-Rex? Is it a scary dinosaur? - Quora