Hippos are Africa's most dangerous large mammal and face significant welfare challenges from territorial fighting, habitat loss, drought, and escalating conflict with human communities competing for water resources.
Male hippo territorial fights cause some of the most severe injuries observed in any large mammal. The canine tusks are weapons capable of bisecting a rival with a single bite, and losing males may sustain grievous wounds including deep lacerations, broken jaws, and organ damage that cause slow, painful death. During drought, reduced water availability concentrates hippos in smaller pools, intensifying competition and violence. The escalation of human-hippo conflict as agricultural land encroaches on hippo ranges puts hippos at risk of retaliatory killing. Individual hippos caught in conflict situations may experience prolonged suffering from wounds or crop-raid injuries.