New research led by University of Göttingen scientists shows that grass death in fairy circles occurs immediately after rainfall due to plant water stress but not due to termite activity. Drone image of car driving through the NamibRand Nature Reserve, one of the fairy-circle regions in Namibia where Getzin et al. undertook grass excavations, soil-moisture and infiltration measurements. Image credit: Stephan Getzin. Fairy circles are patches of bare...