Dinosaur action and adventure evolve into great play with the InterAction Roar 'N React Boris Tyrannosaurus Ultimate T-Rex. Nearly two-feet long, Boris is a fully articulated action figure, based on the character from the animated show Dinosaur Train. He says more than 70 dinosaur phrases and facts and includes several additional play features. Press his tail and his mouth begins chomping. Press his tongue, and he makes crunching sound effects. But watch out for his motion-activated stomping and his T-Rex-sized roar! What makes Boris really unique is built-in technology that allows him to recognize and interact with the other InterAction Figures in Learning Curve's Dinosaur Train line. (When put together, the figures will interact with one another, seeming to have a conversation.) http://www.timetoplaymag.com/toys/2310/learning-curve/interaction-roar-n-react-boris-tyrannosaurus-ultimate-t-rex/