T. rex not a 'top' predator, study says
Tuesday, February 22, 2011 - 18:00
in Paleontology & Archaeology
BERKELEY, Calif., Feb. 22 (UPI) -- Tyrannosaurus rex, long held as the "top dog" predator of Earth's dinosaur period, was more an opportunistic feeder than a top hunter, U.S. paleontologists say.