How many 'Tyrannosaurus rex' walked the Earth?

Using the incredible wealth of fossil data and a modern ecological theory, researchers estimated population density for the extinct apex predator.

Billions of T. rex likely roamed the Earth, paleontologists report

Feathered T-Rex With Movable Jaw 1:40 Figurine

the Museum's dinosaurs are world - famous . Meet the roaring T.rex

1.7 Billion T. Rexes Lived on Earth. Where Are All the Bones?

Tyrannosaurus Rex Metal Earth

Explained: What new research tells us about the Tyrannosaurus Rex

T-Rex skeleton to go under hammer in Switzerland

The number of T. rex calculated by new scientific method

2.5 billion T rex roamed Earth, but not all at once

How Many Tyrannosaurus Rex Walked the Earth?