2.5 billion T. rex roamed Earth, but not all at once, study finds

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The species roamed North America for about 1.2 million to 3.6 million years, meaning the T. rex population density was small at any one moment.
2.5 billion T. rex roamed Earth, but not all at once, study finds
Tyrannosaurus, Dinopedia
2.5 billion T. rex roamed Earth, but not all at once, study finds
Researchers find 2.5bn T-rex roamed Earth - Taipei Times
2.5 billion T. rex roamed Earth, but not all at once, study finds
As many as 1.7 billion T-rexes once dominated the planet, finds
2.5 billion T. rex roamed Earth, but not all at once, study finds
Study: 2.5 billion T. rex roamed Earth, but not all at once
2.5 billion T. rex roamed Earth, but not all at once, study finds
About 2.5 Billion T. Rex Dinosaurs Stomped Across The Earth's
2.5 billion T. rex roamed Earth, but not all at once, study finds
Billions of Tyrannosaurus rexes once roamed earth, study shows
2.5 billion T. rex roamed Earth, but not all at once, study finds
How many T. rexes were there? Billions.
2.5 billion T. rex roamed Earth, but not all at once, study finds
Scientists say T. Rex walked as slowly as humans
2.5 billion T. rex roamed Earth, but not all at once, study finds
How many T. rex were there? Billions, it turns out
2.5 billion T. rex roamed Earth, but not all at once, study finds
How many T. rexes were there? Billions.
2.5 billion T. rex roamed Earth, but not all at once, study finds
Tyrannosaurus Rex News - SciTechDaily
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