The adaptive advantage of larger spores and fruiting bodies can be surmised. Larger spores may store more nutrients to survive dormancy, while larger fruiting bodies may aid spore dispersal, both contributing to species propagation. Individual encystation may have become redundant after the sporulation mode of survival became more robust. It is less easy to envisage how loss of spore granules and use of cAMP as attractant improved fitness. In the following paragraphs, we explore how the latter character may have been a means to achieve an end.