People line up in front of a billboard to leave blessing messages for giant pandas at the Pairi Daiza zoo in Brugelette, Belgium, Nov. 10, 2024. People on Sunday bid farewell to giant panda Tian Bao and twins Bao Di and Bao Mei at the Pairi Daiza zoo as they will return to China on Dec. 10. (Xinhua/Zhao Dingzhe)