It was an orange sunny evening in the desert region of the Nemegt Formation, of what would now be Mongolia. Nothing but the vast flat plains of the rocky desert and fewer water sources and shrubs were the only natural factors in this Ecosystem of Cretaceous era Mongolia. No dinosaurs would stay out here for long but that was until for one particular herd of All-Adult Large Dinosaurs who were on the move to cope with these harsh conditions, were duck-billed hadrosaurs called "Barsboldia".

A herd of Barsboldias would march across the rocky stretches of the ecosystem, all focusing on migrating for a safer place with more natural resources, their skins matching in with the ochre of the sandy hills, and the nonstop orange sun. The Barsboldias would make noises, communicating with others, while walking. A fact is that these Hadrosaurs could go an astonishing amount of days, without thirst or hunger, as they were grown to be "Long Migrating Specialists". As the wind of dust continued to sweep through the plains, the herd of Barsboldias continued walking under one direction with their front hooves and back legs marching through the rocky flats, hoping to find a destination with good natural resources.