Why do the animals have to cry out each time they have gone another mile?

The animals cry out each time they have gone another mile as a way to express their exhaustion and the toll of their journey. This repetition underscores the challenges they face and serves as a reminder of their struggle for freedom or survival. It also emphasizes the collective experience of hardship among them, reinforcing their bond and shared purpose. Ultimately, their cries symbolize both endurance and the weight of their suffering.