Giant panda Gong Gong climbs a tree at the Hainan Tropical Wildlife Park and Botanical Garden in Haikou, south China's Hainan Province, Jan. 12, 2021. Giant pandas Gong Gong and Shun Shun are now aged seven. (Photos: Xinhua)

Giant panda Shun Shun eats bamboo shoots at the Hainan Tropical Wildlife Park and Botanical Garden in Haikou, south China's Hainan Province, Jan. 12, 2021. Giant pandas Gong Gong and Shun Shun are now aged seven.

Giant panda Gong Gong plays at the Hainan Tropical Wildlife Park and Botanical Garden in Haikou, south China's Hainan Province, Jan. 12, 2021. Giant pandas Gong Gong and Shun Shun are now aged seven.

Giant panda Shun Shun has desserts at the Hainan Tropical Wildlife Park and Botanical Garden in Haikou, south China's Hainan Province, Jan. 12, 2021. Giant pandas Gong Gong and Shun Shun are now aged seven.

Giant panda Gong Gong rests on the tree at the Hainan Tropical Wildlife Park and Botanical Garden in Haikou, south China's Hainan Province, Jan. 12, 2021. Giant pandas Gong Gong and Shun Shun are now aged seven.

Giant panda Gong Gong plays at the Hainan Tropical Wildlife Park and Botanical Garden in Haikou, south China's Hainan Province, Jan. 12, 2021. Giant pandas Gong Gong and Shun Shun are now aged seven.