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
Here's how scientists calculated how many T. Rexes lived on Earth
Billions of T. rexes walked on North America during the Age of the Dinosaurs
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What are some cool facts about the t-Rex : r/Dinosaurs
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2.5 billion: That's how many T. rexes may have roamed the Earth over their 3-million-year reign - Genetic Literacy Project
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Why is T. rex everyone's favorite dinosaur? Aren't there like a billion cooler dinosaurs? - Quora
Absolute abundance and preservation rate of Tyrannosaurus rex
Paleontologists Believe 2.5 Billion T. rex Roamed the Earth Over the Cretaceous Period
How many T. rexes were there? Billions.
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