Long before a mammal is born, its skin begins establishing the precise locations where hair will eventually grow. These developing hair follicles form intricate geometric arrangements that differ from species to species. But what determines where each follicle appears, and how does the body create such orderly patterns? Researchers at the University of Geneva (UNIGE) have identified a surprisingly simple process that may help explain this biological mystery. By studying how cells move in response to chemical signals, the team developed a model that successfully recreates the formation of hair…
