Hippopotamuses in captivity have specific welfare requirements related to their semi-aquatic nature, territorial behavior, and social dynamics that many facilities struggle to meet adequately.
Hippo welfare in zoos is often compromised by inadequate water depth and temperature, and by social housing challenges stemming from their territorial nature. Facilities must provide pools deep enough for full submersion, with appropriate water temperature and quality. Social groupings require careful management - incompatible individuals in confined spaces experience chronic stress and injury risk. Zoos maintaining hippos should demonstrate genuine capacity to meet these demanding requirements.