Pack animals are domesticated animals used to carry loads and assist with transportation. Common examples include horses, donkeys, mules, and camels. These animals are trained to carry heavy items on their backs or in specially designed saddles, making them valuable for travel and trade, especially in rugged terrains. Pack animals have been essential throughout history, aiding in exploration and commerce. They are often used in areas where vehicles cannot easily navigate, such as mountainous regions or deserts. Their ability to traverse difficult landscapes makes them indispensable for many cultures around the world.