Giant panda "Erxi" enjoys fruit to cool off at Jinan Wildlife World in Jinan, east China's Shandong Province, July 15, 2019. Zoo authorities have taken measures to keep the giant panda cool in summer. (Photo: Xinhua)

Giant panda "Erxi" enjoys frozen fruit to cool off at Jinan Wildlife World in Jinan, east China's Shandong Province, July 15, 2019. Zoo authorities have taken measures to keep the giant panda cool in summer. (Photo: Xinhua)

Giant panda "Erxi" enjoys fruit to cool off at Jinan Wildlife World in Jinan, east China's Shandong Province, July 15, 2019. Zoo authorities have taken measures to keep the giant panda cool in summer. (Photo: Xinhua)

Giant panda "Erxi" enjoys frozen fruit to cool off at Jinan Wildlife World in Jinan, east China's Shandong Province, July 15, 2019. Zoo authorities have taken measures to keep the giant panda cool in summer. (Photo: Xinhua)

Giant panda "Erxi" enjoys frozen fruit to cool off at Jinan Wildlife World in Jinan, east China's Shandong Province, July 15, 2019. Zoo authorities have taken measures to keep the giant panda cool in summer. (Photo: Xinhua)

Giant panda "Erxi" enjoys bamboo at Jinan Wildlife World in Jinan, east China's Shandong Province, July 15, 2019. Zoo authorities have taken measures to keep the giant panda cool in summer. (Photo: Xinhua)

Giant panda "Erxi" enjoys food at Jinan Wildlife World in Jinan, east China's Shandong Province, July 15, 2019. Zoo authorities have taken measures to keep the giant panda cool in summer. (Photo: Xinhua)

Giant panda "Erxi" cools off in a room equipped with air-conditioner at Jinan Wildlife World in Jinan, east China's Shandong Province, July 15, 2019. Zoo authorities have taken measures to keep the giant panda cool in summer. (Photo: Xinhua)

Giant panda "Erxi" enjoys bamboo at Jinan Wildlife World in Jinan, east China's Shandong Province, July 15, 2019. Zoo authorities have taken measures to keep the giant panda cool in summer. (Photo: Xinhua)

Giant panda "Erxi" enjoys fruit to cool off at Jinan Wildlife World in Jinan, east China's Shandong Province, July 15, 2019. Zoo authorities have taken measures to keep the giant panda cool in summer. (Photo: Xinhua)

Giant panda "Erxi" cools off in a room equipped with air-conditioner at Jinan Wildlife World in Jinan, east China's Shandong Province, July 15, 2019. Zoo authorities have taken measures to keep the giant panda cool in summer. (Photo: Xinhua)