What is a beast of burden?

A beast of burden, also known as a pack animal, is an animal that is used for carrying heavy loads or performing work tasks such as plowing fields. Common beasts of burden include horses, mules, donkeys, oxen, and camels. They have been used for centuries to transport goods and materials and are often preferred over machines in certain situations, such as rough terrain or regions with limited access to fuel. Beasts of burden are known for their strength, endurance, and ability to adapt to different environments. However, they can be susceptible to fatigue, injury, and disease, and require proper care and management to maintain their health and well-being.