A splash in time

We know from fossils that hadrosaurs, like this Corythosaurus, lived here. How do you think they interacted with their environment?

A river runs through a forested valley. Round rocks and mud are scattered long its banks. A yellow and green Corythosaurus walks on two feet along the river’s edge. Its crested head is held high as its tail swings behind it. As it walks along it splashes in pools made by the river.