Dictyostelium - Complex Social Behaviour

The unicellular amoebae Dictyostelium provides an amazing example of altruism and self-sacrifice of the individual cells for the benefit of the group. It seems to have a group consciousness that is used to address problems (in this case shortage of food) which an individual would not be capable to solve.
When food (normally bacteria) is readily available they are individual amoebae, which feed and divide normally. However when the food supply is exhausted, they aggregate to form a multicellular assembly, called a pseudoplasmodium, grex, or slug (not to be confused with the gastropod mollusc called a slug). The slug has a definite anterior and posterior, responds to light and temperature gradients, and has the ability to migrate. Under the correct circumstances the slug matures forming a sporocarp (fruiting body) with a stalk supporting one or more sori (balls of spores). These spores are inactive cells protected by resistant cell walls, and become new amoebae once food is available.



(For further information refer to Dictyostelid on Wikipedia.)

If a unicellular creature is capable of showing such Complex Social Behavior in order to face important problems, what kinds of achievements would humanity be able to make, if we would only start to leave behind our individual ego-centric attitutes.