Why did scientists have to use computer models to study apatosaurus moved?

Scientists used computer models to study how Apatosaurus moved because the fossilized remains provide limited information about muscle structure, skin, and other soft tissues crucial for understanding locomotion. Computer simulations allow researchers to recreate various scenariOS and test hypotheses about the dinosaur's biomechanics. This approach helps visualize the animal's potential movement patterns and energy efficiency, offering insights that physical fossils alone cannot provide. Ultimately, it enhances our understanding of how these massive creatures interacted with their environment.