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• How many T. rexes were there? Billions.

How many T. rexes were there? Billions.

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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

Scientists say T. Rex walked as slowly as humans

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

How many T. rexes were there? Billions.

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

Study: 2.5 billion T. rex roamed Earth, but not all at once - Hawaii Tribune-Herald

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

In All of Time, 2.5 Billion Tyrannosaurus Rexes Have Roamed Earth, Smart News

Billions of T.rex dinosaurs roamed North America, study shows

Like Godzilla, but actually real': study shows T. rex numbered 2.5 billion

Billions of T.rex dinosaurs roamed North America, study shows

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