A chimpanzee receives cool-down beverage from staff members at the Dusit Zoo in Bangkok, Thailand, March 17, 2016. The temperature in Thailand's capital Bangkok reached 37 degrees Celsius on Thursday. (Xinhua/Rachen Sageamsak)

Staff members splash water on a chimpanzee at the Dusit Zoo in Bangkok, Thailand, March 17, 2016. The temperature in Thailand's capital Bangkok reached 37 degrees Celsius on Thursday. (Xinhua/Rachen Sageamsak)

An elephant enjoys splashing water at the Dusit Zoo in Bangkok, Thailand, March 17, 2016. The temperature in Thailand's capital Bangkok reached 37 degrees Celsius on Thursday. (Xinhua/Rachen Sageamsak)