A mechanically compromised skull can result from enlarged fontanelles and smaller frontal bones due to defective migration and differentiation of osteoblasts in the skull primordia (developing skull). The Wnt/Planar cell polarity signaling pathway (Wnt/PCP), usually regulates cell migration and movement in tissues during embryonic development. In a recent study, conducted by Yong Wan and colleagues at the Center for Craniofacial Regeneration, the central research emphasis was on the Prickle1 gene, a core component of the Wnt/PCP pathway, in the skull.