What we do get is the story of how ethanol can be made from corn, but also "most sugar-containing plant materials, such as sorghum, wheat, barley and potatoes!" The animation shows us the multi-step process that corn goes through on its way to become ethanol.
All I can think of is that when I grow up, I'm going to Bovine University! Call this my way of "going yellow."
[Source: Driving Ethanol]