Pavementcells in the leafepidermisstartout assimplepolygonsanddevelop intopuzzleshaped units with interlocking lobes. This complex geometry offers biomechanical advantages; interlocking increases resistance to tension andmaintains the structural integrity of the leaf surface (Malinowski, 2013). Biologists have long since wondered how epidermal cells attain their wavy contours. In 1942, Watson p...