Teenage Tyrants (IMAGE) University of New Mexico Caption New research suggests offspring of enormous carnivorous dinosaurs, such as Tyrannosaurus rex, may have fundamentally re-shaped their communities by out-competing smaller rival species. Credit UNM Biology Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.