Fiona, a baby Nile Hippopotamus has her gums rubbed by a zookeeper in her enclosure at the Cincinnati Zoo & Botanical Garden, Wednesday, January 10, 2018, in Cincinnati. Fiona, born six weeks prematurely at 29 pounds, well below the common 50-100 pound range, and required nonstop critical care by zookeepers to ensure her survival has become a international celebrity. She will reach her first birthday on Jan. 24. (Photo by John Minchillo/AP Photo)
