Black rhinoceroses are solitary, territorial browsers whose welfare in captivity requires large naturalistic enclosures, diverse browse, and careful social management that respects their asocial nature.
Black rhinoceros welfare in zoos is complicated by the fundamental incompatibility between their strongly solitary nature and the zoo imperative to house breeding pairs. Forced proximity between incompatible individuals causes chronic stress that can lead to serious injuries. Foot problems from inadequate substrate are a systemic welfare problem across zoo rhinoceros collections. Despite these challenges, captive black rhinos have contributed meaningfully to conservation through genetic banking and reintroduction, creating an ethical argument for maintaining welfare-positive captive populations as insurance against wild population collapse.