One scorpion produces at most just two milligrams of venom at a time. Credit: Tola Kokoza, Creative Commons Attribution-Share Alike 3.0 ***************************************************************** The most expensive liquid in the world is venom from a scorpion which has potential medical applications, but its extraction and processing are highly specialized and dangerous. The deathstalker is one of the most dangerous scorpions on the planet, and what makes it so dangerous also happens to be the most expensive liquid in the world. This stuff costs $39 million per gallon. The reason is because the liquid is hard to get. Scorpions are milked by hand,...