The Maximum Number Of T. Rex To Ever Walk The Earth Was 1.7 Billion

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That's 800 million fewer than a previous estimate suggested.

New study says 1.7 billion T-Rexes roamed the earth before going

The 120-year search for the purpose of T. rex's arms

How did a T.rex protect itself? - Quora

What Really Killed the Dinosaurs. Aliens! But it's not what you

How many T. rex ever existed? Calculation of dinosaur's abundance

Tyrannosaurus rex - Page 7 - Carnivora

Fewer T. rex walked the Earth than previous estimated, new study

A bunch of T. rex walked the earth

Tyrannosaurus rex - Page 7 - Carnivora