World's oldest known pygmy hippo turns 52 at San Diego zoo
Hannah Shirley, the world's oldest known pygmy hippopotamus, turned 52 and celebrated at San Diego Humane Society with a themed party and specialized lifelong care.
Zoo Miami's adorable pygmy hippo gets health check. Take a look
Zoo Miami's pygmy hippopotamus Aubergine received treatment after showing lethargy and a reduced appetite, but no significant health issues were found.