Fans of the StoryBots will recognize the colorful art from the hugely popular dinosaur video "Tyrannosaurus Rex" on YouTube. A gigantic body and super-sharp teeth make the Tyrannosaurus rex the most fearsome of the dinosaurs. Just don't make fun of those tiny arms! This rhyming Step 1 Science Reader will entertain while imparting simple facts about the most popular carnivorous dinosaur of all.