Why thoroughbred horse semen is the world's most expensive liquid
3:00am PDT - April 14th, 2020 bill gates - Business InsiderDepending on the stallion, horse semen is one of the most expensive liquids on the planet. A gallon of gold-medal-winning Big Star's semen is worth $4.7 million. Wealthy investors are willing to pay high prices for a proven winner's semen. Visit Business Insi…