Horses, unlike humans, do not have the innate desire to beat records, as they run as fast as they can based on their genetic potential. The racing industry has tried various breeding techniques and diets to enhance horses' performance, but they may have already reached their physiological limit due to the limited gene pool from which they originate. On the other hand, human races have seen advancements in technology like improved tracks and footwear, enabling athletes to continually improve their speed and performance.