Well they don't speak English and they don't smile, so how do you know?
A: When a sheep is chewing its cud it is content.
Sheep are ruminants, meaning that their stomachs consist of four compartments. The rumen is the compartment where food that is quickly eaten is stored. Because the rumen contains microorganisms, it also is the reason that sheep are able to eat grass and silage that other animals are not able to digest. When a sheep is resting the food in the rumen is regurgitated, chewed again and then swallowed. This regurgitated food is known as cud. So if a sheep is chewing their cud this means that their stomach is working properly which equals a happy sheep.
That makes such good sense. It's the small indicators that tell us the most!
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