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.

Faster than T rex - the dinosaur 'mummy' that had to run for its life, Dinosaurs

Dinosaurs: Billions of T-Rex once roamed the Earth, scientists say

Splitting T. Rex Into 3 Species Becomes a Dinosaur Royal Rumble - The New York Times

Sorry, but the T. rex doesn't look anything like you think it does

Billions of T. rexes walked on North America during the Age of the Dinosaurs

Tyrannosaurus rex, Prehistoric Planet Wiki

Rattling Bones / Paleontologists debate T-rex's nature as predator or scavenger

As many as 2.5 billion Tyrannosaurus rexes once stalked Earth

The Largest T. Rex Discovered Is Nearly 70% Larger Than Previously Believed