Hippo was Zoo’s longest resident and oldest hippo in accredited North American zoos
Denver Zoo is deeply saddened to announce the death of “Bertie,” a 58-year-old male hippopotamus. In addition to being the Zoo’s longest resident, Bert, as he was affectionately known, was the oldest hippo in accredited North American zoos. After witnessing a significant decline in his quality of life due to his advanced age, staff made the difficult decision to humanely euthanize him on the morning of Monday, May 4 at Denver Zoo. Hippos live 30-40 years in the wild and usually up to about 50 years in zoos.