A sheep.
Sheep are one of the most common animals that inhabit Eden in Black & White.
They can be eaten as food by creatures or villagers, and will contribute 800 food to the village store.
They are always white and are normally found in herds, with a few exceptions.
They are most notably found scattered through Land 1, being part of The Lost Flock challenge, and on Land 4, where they disrupt Morg's sleep, which prompts him to toss stones down the cliff in an attempt to kill them.