Happy piggy
No farm is complete without animals.  The animals can be harvested for food, for crafting materials and goods for the stores.  All the animals can be unlocked by leveling up in the game, except for the peacock, which requires a quest completion.  Here is a list of the animals available in the game.  Click on the links to see the details on each.

Hen Cow
Sheep Rabbit
Ram Duck
Piggy Goat
Peacock Bull
Horse Goose
Turkey Camel
Boar Fox
Buffalo Ardennes