Pelagia, the oldest hippo in Poland, celebrates its 39th birthday at Warsaw Zoo in Warsaw, Poland on Sept. 19, 2024. (Photo by Jaap Arriens/Xinhua)
Pelagia, the oldest hippo in Poland, celebrates its 39th birthday at Warsaw Zoo in Warsaw, Poland on Sept. 19, 2024. (Photo by Jaap Arriens/Xinhua)
Pelagia, the oldest hippo in Poland, celebrates its 39th birthday at Warsaw Zoo in Warsaw, Poland on Sept. 19, 2024. (Photo by Jaap Arriens/Xinhua)
Pelagia, the oldest hippo in Poland, celebrates its 39th birthday at Warsaw Zoo in Warsaw, Poland on Sept. 19, 2024. (Photo by Jaap Arriens/Xinhua)
