The parasaurolphus is a magnificent animal capable of being docile and aggressive their sheer size and sound scares smaller animals expect….velociraptors but they do fear big carnivores and run when necessary , they also form strong bonds with brachiosaurus,apatosaurus,triceratops,sinoceratops. Stegosaurus ,ankylosaurus,nasutoceratops gallimimus,pachycephalosaurus,mamacheiosaurus,dreadnoughtus,ouranosaurus,iguanadon, and espiecally Corythosaurus however make no mistake their very Loud