A chimpanzee rests under a shelter at a zoo in Changsha, central China's Hunan Province, Aug. 2, 2019. The zoo takes various measures to cool the animals due to high temperature in Changsha. (Photo by Chen Zeguo/Xinhua)

Monkeys enjoy sprayed water at a zoo in Changsha, central China's Hunan Province, Aug. 2, 2019. The zoo takes various measures to cool the animals due to high temperature in Changsha. (Photo by Chen Zeguo/Xinhua)

A red panda rests in an air-conditioned room at a zoo in Changsha, central China's Hunan Province, Aug. 2, 2019. The zoo takes various measures to cool the animals due to high temperature in Changsha. (Photo by Chen Zeguo/Xinhua)

A panda eats bamboo in an air-conditioned room at a zoo in Changsha, central China's Hunan Province, Aug. 2, 2019. The zoo takes various measures to cool the animals due to high temperature in Changsha. (Photo by Chen Zeguo/Xinhua)