The breed of horse that is large and powerful due to their history of pulling heavy carts is called a draft horse. Draft horses are known for their strength, endurance, and ability to do heavy work like pulling heavy loads. They are often used in agriculture, logging, and other tasks that require significant power.
Examples of draft horse breeds include the Clydesdale, Percheron, Shire, and Belgian. These horses typically have a muscular build, strong legs, and a calm temperament, making them well-suited for pulling heavy loads.
Draft horses have played a significant role in human history, helping with tasks like plowing fields, hauling goods, and transporting people. Their size and strength make them valuable partners in various industries where heavy lifting is required.