Researchers learn more about teen-age T.Rex
(PHYSorg.com Archaeology & Fossils)

Without a doubt, Tyrannosaurus rex is the most famous dinosaur in the world. The 40-foot-long predator with bone crushing teeth inside a five-foot long head are the stuff of legend. Now, a look within the bones of two mid-sized, immature T. rex allow scientists to learn about the tyrant king`s terrible teens as well.