Fewer T. rex walked the Earth than previous estimated, new study claims
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New research claims that the T. rex population was much lower than scientists previously estimated, claiming 1.7 billion roamed our planet.
How to Outrun a Dinosaur
More than 2.5BILLION T-Rexes walked Earth before dinosaurs died out - and 20,000 lived at any one time
T-Rex: Tyrannosaurus Dinosaur Facts and Information
Dinosaur research: 'Tyrannosaurus rex' walked at same speed as humans, new study shows, U.S.
How many T. rexes were there? Billions.
Fewer T. rex walked the Earth than previous estimated, new study claims
Fossil discovery reveals teenage Tyrannosaurus rexes
New Origin Story for Tyrannosaurs Rex Suggested by Fossil - The New York Times
Billions' of Tyrannosaurus rexes said to have walked the Earth in all of history - National
Fewer T. rex walked the Earth than previous estimated, new study, rex
Study: 2.5 billion T. rex roamed Earth, but not all at once
