BUENOS AIRES, Argentina - Paint the polar bear purple and the crowds will come.That seems to be the lesson a zoo in Mendoza has learned, after its 23-year-old bear Pelusa was sprayed with an antiseptic spray that turned her normally white fur a dark shade of violet.The unusual color — a temporary side effect of the treatment for dermatitis — has turned the aging bear into a minor celebrity in Argentina and prompted thousands of schoolchildren and tourists to make their way to the Jardin Zoologico de Mendoza in the western city beneath the snow-capped Andes.“We never thought she would...