1. Name the major transportation differences between a horse, ox, and mule. 2. How were draft animals important to the fur trade? Objective By reading first and secondhand sources, learners will examine how commerce, security, and livelihoods during the fur trade era depended upon the acquisition of draft animals such as horses, oxen, and mules. They will compare and contrast the biological strengths and weaknesses of each animal. Background Bent’s Fort began as a trading post in the southern plains during the 1830s. People who visited the post were either from regional Native American tribes Duration: 60 Minutes.