Oxen

By 5000 B.C., Mesopotamian, Turkestan, and Chinese farmers had begun to domesticate various animals, including the ox, camel, horse, and yak. 81:2.12

The long struggle to substitute oxen for men has ultimately led to the liberation of man power for more valuable tasks in society. 81:6.21

Oxen were used for burden bearing in ancient times alongside other domesticated animals that have since disappeared. 66:5.5