T-Rex is the popular name for Tyrannosaurus Rex, a large carnivorous dinosaur that lived some 65 million years ago. The name tyrannosaurus translates to "tyrant lizard," a name scientists designated for this creature because they believe a creature of its size must have dominated the other creatures that once roamed this earth. This documentary examines the life of T-Rex based on discoveries and ever-changing scientific theories about the life of this majestic animal. Was it a hunter or scavenger? How did it live with other dinosaurs? Were the T-Rexes huge or sparse in number? Did it live in packs or move alone? Discover the life of the Tyrannosaurus Rex. ~ Forrest Spencer, All Movie Guide