>>12838502John Lasseter gave details about the film's plot: "They are kind of cartoony but they are dinosaurs; they are not walking around with clothes on or anything like that, they still are kind of dinosaurs. We focused on mostly the plant-eaters, not the carnivores… Their society becomes more of an agrarian society, meaning farmers. They become farmers. It’s a very funny story about a certain way of life that a young dinosaur has trouble fitting into and he ends up going on this quest. He kind of messes up and he has to put everything right by going on this quest and on that quest he meets this our character that is an outcast from his society too and so the two of them form this bond and it becomes this unique kind of story…"[8] The filmmakers want to explore what dinosaurs represent today, and how they are represented in stereotypes. Bob Peterson said: "It's time to do a movie where you get to know the dinosaur, what it's really like to be a dinosaur and to be with a dinosaur."[9] Peterson said the inspiration for the movie came from a childhood visit to the World's Fair where he was impressed by some dinosaur animatronics.[9] The film's title might suggest that dinosaurs are evil. However, Peter Sohn warned: "The title is deceptively simple. It has more meaning than it seems."[9]
On January 1, 2013, the Upcoming Pixar blog revealed additional information about the plot: "What if the cataclysmic asteroid that forever changed life on Earth actually missed the planet completely and giant dinosaurs never became extinct? This hilarious, heartfelt and original tale is directed by Bob Peterson (co-director/writer, Up; writer, Finding Nemo) and produced by John Walker (The Incredibles, The Iron Giant)."[10]