Of all the animals, the horse has probably shared the most of their existence in human adventures and has been intimately allied with human progress. For thousands of years, the horse has participated in the pleasures, the dangers, and the hard work that have marked human life. It has long played an important role in transport, whether ridden or used for pulling a chariot, carriage, horse-drawn boat, stagecoach, or tram. For many centuries, horses were primarily used in warfare. They have also been used for food. Indeed, horses have galloped through an important role in human life. Now, horses have also contributed an important product that was never thought will be used by men.