Cows can sleep standing up, but they can only dream lying down.
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.
In 1984, a Canadian farmer began renting ad space on his cows.
It is physically impossible for pigs to look up into the sky.
Sheep can survive for up to two weeks buried in snow drifts.