image: A nest of Polistes wasps from Brazil, in which females are monogamous. These wasps have very simple societies, similiar to the early ancestors of today's social insects. This image relates to article that appeared in the May 30, 2008, issue of the journal Science, published by AAAS. The study, by Dr. William O. H. Hughes of the Max-Planck-Institut für Astro and colleagues, was titled "Ancestral Monogamy Shows Kin Selection Is Key to the Evolution of Eusociality." view more
Credit: Photo provided by FLW Ratnieks, via <i>Science</i>-AAAS