In 1984, a Canadian farmer began renting ad space on his cows.
It is physically impossible for pigs to look up into the sky.
You can't plow a cotton field with an elephant in North Carolina.
A cow produces around 200,000 glasses of milk in her lifetime.
There are more than 150 million sheep in Australia, and only some 20 million people.
The most expensive cow in the world was sold $1.3 million.