Jurassic World is the long-awaited next installment of the groundbreaking Jurassic Park series. T. rex's, velociraptors, triceratops--as well as some all-new dinosaurs--will roar across the screen in this epic action-adventure directed by Colin Trevorrow starring Chris Pratt, Bryce Dallas Howard, Ty Simpkins and Nick Robinson Was Tyrannosaurus rex a speedy and savage hunter, or was it a slow-moving scavenger, surviving on scraps left from other dinosaurs? World-renowned tyrannosaur expert Dr. Thomas R. Holtz, Jr. shares the evidence on both sides of the argument in this easy-to-read, easy-to-understand Step into Reading book that young dinosaur enthusiasts will heartily devour.