Dayni Moon. Since Dayni Moon was so close to the sun, night and day were only minutes long and the sheep were constantly changing between peaceful one-legged sheep to angry red eyed rams. The robot farmers were usually safe from the Weresheep, but if they became enraged and began to stampede, there was little the farmers could do. If you get close to them during the day; however, they can head-butt you, causing you to take damage.
If you complete the level without killing any weresheep you get the wool protest skill point.