In social evolution theory, it has become common wisdom that close family ties should promote cooperative behaviour. Yet, in social insects, evidence is accumulating that queen promiscuity and low relatedness sometimes work better. © 2012 Elsevier Ltd.
Van Zweden, J. S., Cardoen, D., & Wenseleers, T. (2012, November 6). Social evolution: When promiscuity breeds cooperation. Current Biology. Cell Press. https://doi.org/10.1016/j.cub.2012.09.003