Giant panda Shunshun takes a walk at Hainan Tropical Wildlife Park and Botanical Garden in Haikou, capital city of south China's Hainan Province, Oct. 26, 2020. (Xinhua/Yang Guanyu)

Giant panda Gonggong enjoys a bath at Hainan Tropical Wildlife Park and Botanical Garden in Haikou, capital city of south China's Hainan Province, Oct. 26, 2020. (Xinhua/Yang Guanyu)

Giant panda Gonggong heads for a bath at Hainan Tropical Wildlife Park and Botanical Garden in Haikou, capital city of south China's Hainan Province, Oct. 26, 2020. (Xinhua/Yang Guanyu)

Giant panda Gonggong plays outside at Hainan Tropical Wildlife Park and Botanical Garden in Haikou, capital city of south China's Hainan Province, Oct. 26, 2020. (Xinhua/Yang Guanyu)

Giant panda Gonggong plays outside at Hainan Tropical Wildlife Park and Botanical Garden in Haikou, capital city of south China's Hainan Province, Oct. 26, 2020. (Xinhua/Yang Guanyu)

Giant panda Shunshun enjoys its food at Hainan Tropical Wildlife Park and Botanical Garden in Haikou, capital city of south China's Hainan Province, Oct. 26, 2020. (Xinhua/Yang Guanyu)