Dennis Deinocheirus is a student and junior conductor at Junior Conductors Academy. He knows a lot more about dinosaurs than Buddy, but he has more trouble making friends. He also has several autistic traits like his obsession with dinosaur facts, repeating "Buddy and Dennis are friends" to himself, or talking in a monotone voice. Buddy is initially jealous of Dennis for beating him in class, but they end up working together to pass the test and becoming great friends.


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