Scientists have discovered clues to a new dinosaur that reveals new details about the Tyrannosaurus Rex we've grown to appreciate (and fear).
It seems the Tyrannosaurus-Rex wasn't always the towering, menacing creature with a massive head and razor-sharp teeth that we're familiar with. Fossils discovered in Uzbekistan by Smithsonian paleontologists show that there was a smaller, more slender dinosaur in the tyrannosaurus family called the Timurlengia euotica.
The small dinosaur is believed to have lived around 20 million years before the Tyrannosaurus Rex—though "small" is relative; according to a Smithsonian Magazine report on the findings the dinosaur was about the size of a horse.
The early ancestors of the Tyrannosaurus Rex were much smaller in size—though just as sharp in smarts with their keen olfactory and visual abilities.
Read more at Smithsonian Magazine