That's what the agronomists tell us. It is a thoroughly domesticated plant, totally dependent on man for survival because it cannot spread its seed. The corn ear was developed by humans over centuries of selective breeding. No where in the plant kingdom is there a wild or cultivated plant like corn. A lot of corn is grown here on the prairie.
Many farmers raising livestock grow it as winter feed.
Obviously the animals can eat the kernels. Consumers like the taste of corn-fed meat. Stalks, leaves and husks can be chopped for silage and used alone or with other feed types. Golden Harvest feed corn is shipped to foreign countries like China for use by humans, poultry and pigs. People in many other countries of the world do not eat as much meat as Americans.