Ants/bees/multicellular cells are the best example of a working communist society, since they have dominated the entire world and have done so for over 100 million years. Ant society, although superficially monarchist, is actually communist. The queen is not a ruler, and rather is a worker for the greater good, producing babies. This is the sole reason why ants protect the queen. Not because of any hierarchy, but because the queen helps the workers, so they help her back. Ants have free education, free shelter, and free healthcare. Ants distribute all food to those who need it (for free), have co-operative broodcare, communicate the positions of food to other ants and are extremely altruistic. Not only this, but they are extremely intelligent for their size, being as intelligent as some primates. Ants can build cities, navigate in ways that humans cannot, use the sun as a compass, organize social events, distribute sap that is used as medicine, use larvae as tools, domesticate other animals and farm crops. It is arguable that ants could even be the true dominant civilization on this planet, as they have been around for far longer than humans, are on every continent apart from Antarctica, and they have survived every extinction event for the past 100 million years and came back stronger.