That animation was interesting. It seems to me that this phenomena is active in us humans as well. We even find it on this very forum. The thumbs we can press to vote a topic up or down are equivalent to the chemical signals ants leave for eachother. A thread recieving a lot of attention will be presented first, thereby attracting more attention. Bad selections will just phase out naturally.
It seems to me that this is not a favorable selection method when dealing with issues of a philosophic, religious or spiritual nature, since the popularity of ideas in those areas of human activity seldom equates quality, but that is a bit off topic.
It is a curious dance with humans. The masses move like ants. At the same time individuals strive and rule, but they are also moved by the masses. And yet, sometimes one single individual can change the world... I wonder if ants have heroes.