How many T. rexes were there? Billions.
By Robert Sanders
How Many Tyrannosaurus Rexes Ever Lived on Earth? Here's a New Clue. (Published 2021)
By Kenneth Chang
How many 'Tyrannosaurus rex' walked the Earth?
By Daniel Latorre & Ashley W Poust
Billions of T. rex likely roamed the Earth, paleontologists report
By Michael Greshko