Fewer T. rex walked the Earth than previous estimated, new study

New research claims that the T. rex population was much lower than scientists previously estimated, claiming 1.7 billion roamed our planet.

Palaeontologists reassess T-rex and find it wasn't as heavy as we thought

Billions' of Tyrannosaurus rexes said to have walked the Earth in all of history - National

Tyrannosaurus rex couldn't run, says new research

Experts find remains of unknown T-Rex dinosaur relatives in Morocco

Walk, Dont Run

Tyrannosaurus rex, Prehistoric Planet Wiki

How to Outrun a Dinosaur

Tyrannosauridae - Wikipedia

Up to 1.7 billion T. rex dinosaurs lived on Earth, a new study found. But scientists aren't sure where all the bones went.

T-Rex: Tyrannosaurus Dinosaur Facts and Information

T. rex could have been 70% bigger than fossils suggest, new study shows

That's a lot of teeth': 2.5 billion T rex walked the earth, researchers find, Dinosaurs