This combination photo taken on Aug. 4, 2016 shows 40 degrees Celsius on a thermometer (upper) and Siberian tigers have a shower at a park in Harbin, capital of northeast China's Heilongjiang Province. Heat wave engulfed most part of China recently. Even the chilliest city of China Hulun Buir in north China's Inner Mongolia Autonomous Region, registered a temperature of 44.1 degrees Celsius (about 111 degrees Fahrenheit) on Wednesday, the highest in the city's history. (Xinhua/Wang Jianwei)
