Giant panda Zhu Yu eats her birthday cake at Madrid Zoo in Madrid, Spain, on Sept 19, 2026. The sixth birthday party of the giant panda couple Jin Xi and Zhu Yu was held here on Saturday. [Photo/Xinhua]

Giant panda Zhu Yu eats her birthday cake at Madrid Zoo in Madrid, Spain, on Sept 19, 2026. The sixth birthday party of the giant panda couple Jin Xi and Zhu Yu was held here on Saturday. [Photo/Xinhua]

Giant panda Jin Xi eats his birthday cake at Madrid Zoo in Madrid, Spain, on Sept 19, 2026. The sixth birthday party of the giant panda couple Jin Xi and Zhu Yu was held here on Saturday. [Photo/Xinhua]

Giant panda Jin Xi walks towards his birthday cake at Madrid Zoo in Madrid, Spain, on Sept 19, 2026. The sixth birthday party of the giant panda couple Jin Xi and Zhu Yu was held here on Saturday. [Photo/Xinhua]