Why are there always 3 sheep? I mean literally always! The females usually birth two lambs and that is why you will mostly see them running around in groups of three. The Icelandic sheep is one of the purest breeds of sheep in the world. It is not only the cutest little animal, but its wool keeps us warm and its meat keeps us strong. There are about 800,000 sheep in Iceland and only about 320,000 Icelanders. This means there are more than two sheep per human on the island.