Players take turns. A turn consists of an optional exchange, followed by rolling dice. The first player to get (at least) a rabbit, a sheep, a pig, a cow, and a horse, wins.
The player rolls the two (dodecahedral) dice, which look like this:
Fox die: 6 rabbits, 2 sheep, 2 pigs, 1 horse, 1 fox
Wolf die: 6 rabbits, 3 sheep, 1 pig, 1 cow, 1 wolf
Depending on the outcome of the roll, the animals may "breed" and the player may end up with more animals as a result. The process behind this is best explained