How many T. rexes were there? Billions.

Over approximately 2.5 million years, North America likely hosted 2.5 billion Tyrannosaurus rexes, a minuscule proportion of which have been dug up and studied by paleontologists, according to a UC Berkeley study. (Image by Julius Csotonyi , courtesy

How many T. rexes were there? Billions.

Two and a half billion T. rex dinosaurs once lived, study finds

Dinosaur Census! Estimated 1.7 Billion T. Rexes Walked the Earth

A total of some 2.5 billion T. rex roamed the Earth, study finds

Here's how scientists calculated how many T. Rexes lived on Earth

What are some cool facts about the t-Rex : r/Dinosaurs

Total T. Rex Population During Species' Existence Was 2.5 Billion

Palaeontology: More than 2.5 BILLION T. Rexes roamed the Earth over their 2.5 million years

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

1.7 billion Tyrannosaurus rexes walked the Earth before going extinct, new study estimates