Breeders feed a rhinoceros with watermelon at Beijing Zoo in Beijing, capital of China, July 18, 2019. In the sweltering summer heat, Beijing Zoo took many measures to keep animals cool. Taking into account the different habits of animals, different measures like air-conditioning, ice cubes, auto-spraying system, paddling pools, and high moisture fruits were used to ensure that animals have a comfortable summer. (Xinhua/Li Xin)