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. (Photos: Xinhua)

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.

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.

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.

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.

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.