How many 'Tyrannosaurus rex' walked the Earth?
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Using the incredible wealth of fossil data and a modern ecological theory, researchers estimated population density for the extinct apex predator.
A bunch of T. rex walked the earth
How many T. rex ever existed? Calculation of dinosaur's abundance offers an answer
Two and a half billion T. rex dinosaurs once lived, study finds
Tyrannosaurus rex Smithsonian Institution
Billions of T. rex likely roamed the Earth, paleontologists report
New Study Reveals About 2.5 Billion T-Rex Walked The Earth Over A Couple Million Years! - Science
Tyrannosaurs may have hunted together in packs like wolves
How many 'Tyrannosaurus rex' walked the Earth?
Scientists say T. Rex walked as slowly as humans
Fewer T. rex walked the Earth than previous estimated, new study claims
Walk the dinosaur: New biomechanical model shows Tyrannosaurus rex in a swinging gait
Fewer T. rex walked the Earth than previous estimated, new study, rex
