Female polar bear Anori looks out through a toy as she cools off during a hot summer day at the zoo of Wuppertal

Female polar bear Anori looks out through a toy as she cools off during a hot summer day at the zoo of Wuppertal

Female polar bear Anori looks out through a toy as she cools off during a hot summer day at the zoo of Wuppertal, Germany, Jul 2, 2015. A widespread, long-lasting heat wave will spread across much of France, U.K., Belgium, the Netherlands and western Germany with forecast highs on Wednesday reaching 35 degrees Celsius (95 degrees Fahrenheit). REUTERS/Wolfgang Rattay