Visitors line up at the gate of Ueno Zoo in Tokyo, Japan, Sept. 28, 2024. Beloved giant pandas Ri Ri and Shin Shin left Tokyo's Ueno Zoo in the early hours of Sunday to fly back to their home country China due to age-related health concerns. On Saturday, the final public viewing day for the panda pair, more than 2,000 fans lined up before opening to say their goodbyes, with many in tears. Giant panda Ri Ri, a male, and female giant panda Shin Shin, both from southwest China's Sichuan Province, arrived at Ueno Zoo in February 2011 under a leasing agreement. (Xinhua/Zhang Xiaoyu)