Abstract
The origin of species has long held the attention of students of biology, yet this process in many ways has remained enigmatic. Of specific interest to many has been the role of assortative mating in speciation (Bolnick and Fitzpatrick 2007). Assortative mating, which occurs when individuals prefer mates who possess characteristics similar to their own, has been recognized as a critical component of speciation despite a general lack of understanding of the underlying mechanisms that drive this pattern. In this issue, Greenway et al. employ cutting edge experimental approaches in a unique study system to provide a fascinating and robust test of alternative mechanisms that can give rise to assortative mating, providing valuable insight into the great mystery of mysteries. This article is protected by copyright. All rights reserved
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