Eusociality: the what, how, and why of a controversial topic.

An article written by Nowak et al. (2010) entitled The Evolution of Eusociality explains the role that haploidy and diploidy are hypothesized to play in the inclusive fitness theory.

Figure 4: Solitary and primitively eusocial wasps. (Nowak et al., 2010).

Another comprehensive review of this topic is discussed in Cooperation, Conflict, and the Evolution of Complex Animal Societies by Rubenstein & Kealey (2010).  This article is a bit easier to understand so I would suggest reviewing this one prior to reading Nowak et al.  Additionally, some of the vocabulary words in this article are enabled with a click-and-define feature that should help with reading comprehension.  

The below images are from the Rubenstein & Kealey article.

Figure 1: Group-living is widespread in the animal kingdom.

Figure 3: Patterns of relatedness in haplodiploid and diploid species.

And finally, my former undergraduate assistant was tricked by a mimic.  He got sick after eating an Indian Strawberry (Duchesnea indica) even though I told him not to.  Perhaps the Indian strawberry is a "model" species that the common strawberry (Fragaria virginiana) "mimics"?  

This is an imagine of Indian strawberry. 
Note: the upright growth habit. (Photo by Mike_tn of Flickr)

The edible plants community seems conflicted as to whether Indian strawberry is indeed edible or not, but, when in doubt, don't eat it!