How many 'Tyrannosaurus rex' walked the Earth?
![How many 'Tyrannosaurus rex' walked the Earth?](https://images.theconversation.com/files/395507/original/file-20210416-21-215xck.jpg?ixlib=rb-1.1.0&rect=0%2C0%2C2269%2C1437&q=20&auto=format&w=320&fit=clip&dpr=2&usm=12&cs=strip)
Using the incredible wealth of fossil data and a modern ecological theory, researchers estimated population density for the extinct apex predator.
![](https://www.popsci.com/uploads/2023/08/24/abelisaurs-morocco-trex-cousin.png?auto=webp)
These dinosaurs had shorter arms than the T. rex
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In All of Time, 2.5 Billion Tyrannosaurus Rexes Have Roamed Earth, Smart News
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How Many Tyrannosaurus Rex Walked the Earth?
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The Total Number Of T-Rex That Ever Walked The Earth Is 2.5 Billion
T. Rex Discoveries Reveal How the Dinosaurs Hunted, Walked, and Grew
![](https://www.dinosaur.org/wp-content/uploads/2023/04/T-Rex-Baring-Teeth-.png)
The Ultimate Guide To Tyrannosaurus Rex - All About T-Rex
![](https://a-z-animals.com/media/2022/06/cropped-t-rex.jpg)
Tyrannosaurus Rex Animal Facts Tyrannosaurus rex - A-Z Animals
Where did the T.Rex live, and in what period? - Quora
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Tyrannosaurus rex, Prehistoric Planet Wiki
National Geographic Kids™: T. Rex by Andrea Silen (Paperback)
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Tyrannosaurus rex and velociraptor may have had lips covering their teeth, new study finds
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Billions of T. rex likely roamed the Earth, paleontologists report
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Dinosaurs: Billions of T-Rex once roamed the Earth, scientists say
![](https://media.australian.museum/media/dd/images/Tyrannosaurus_rex.width-800.24d1050.jpg)
Dinosaur - Tyrannosaurus rex - The Australian Museum