What is a "pack animal"?

A pack animal is a domesticated animal that is trained to carry loads, equipment, or supplies for humans. These animals are often used in areas where wheeled transport is not practical, or where there is no road network. Common examples of pack animals include horses, mules, llamas, and camels. These animals are often used in remote areas such as mountains, deserts, or jungles to transport goods and supplies to villages, military bases, or scientific expeditions. Pack animals are trained to follow a lead animal or handler and can carry heavy loads for long distances, making them an essential tool for many people around the world. In addition to carrying loads, pack animals may also be used for riding or plowing fields, depending on their size and strength.