Have you seen the (virtual) Farm Babies at the Minnesota Zoo? Check them out!
One of the zookeepers even reads stories to the baby animals.
Reading is such a great way to learn about farms, animals, and where food is grown. 'A Farmer's Life for Me' is a great book for little ones talking about life on a farm, and it is put to a song in their YouTube video:
What are your favorite books about farms or food?