 Brachiosaurus is the first dinosaur seen by the park's visitors. It is inaccurately depicted as chewing its food, and standing up on its hind legs to browse among the high tree branches. According to artist Andy Schoneberg, the chewing was done to make the animal seem docile, in a way it resembled a cow chewing its cud. The dinosaur's head and upper neck was the largest puppet without hydraulics built for the film. Despite scientific evidence of their having limited vocal capabilities, sound designer Gary Rydstrom decided to represent them with whale songs and donkey calls to give them a melodic sense of wonder. Penguins were also recorded to be used in the noises of the dinosaurs.
