A hippopotamus, living in Yongchuan Safari Park in southwest China’s Chongqing, swims to shore and asks some help from a zookeeper, as the hippo felt some discomfort in his mouth. The zookeeper then bended down and helped the hippo "floss" after the meal. The hippo seemed to feel much better and returned to cruise around in the water.(Photo: China News Service/Yang Qiao)
