The term 'STALLIONS' Partners' refers to the female horses that are paired with STALLIONS. These female horses are known as mares, and they are typically used for breeding purposes. Mares are usually smaller than STALLIONS and have a more docile temperament. They are also used for riding and racing, and can be trained to perform various tasks. Mares are an important part of the equine industry, and they play a vital role in the production of healthy foals.