Tyrannosaurus

RAWR! 2.5 Billion T. Rexes Have Roamed The Earth, But Not All At Once: Study
A whole lot of Tyrannosaurus rexes used to rule the planet.
By Seth Borenstein, AP

'Dueling Dinosaurs' Fossils Donated To North Carolina Museum
The Tyrannosaurus rex and Triceratops horridus known as the dueling dinosaurs were buried together 67 million years ago on a Montana hillside.
By AP