All for the Love of Riding?

Almost all breeds of horses can, at least in theory, carry humans on their backs or be harnessed to pull objects such as carts or plows. However, horse breeds were developed to allow horses to be specialized for certain task; lighter horses for racing or riding, heavier horses for farming and other tasks requiring pulling power. In some societies, horses are a source of food, both meat and milk; in others it is taboo to consume them....