And it was us common folk who made that necessary. I grew up in Iowa. And I've worked in cornfields in the middle of summer. Which sucked. Corn is very very itchy.

Anyways, Corn, and many other fruits and vegetables, come in grades.

First Grade: Human Consumption.

Second Grade: Animal consumption. Wanna know the difference between human corn and animal corn? Its appearance. Humans don't like ugly foods.

And the Third Grade of corn is industrial. Mainly Ethanol.