Rhinoceroses are critically endangered megafauna whose welfare in zoos requires large territories, mud wallowing access, and careful reproductive management in species survival programs.
Rhinoceros welfare in zoos spans a wide range depending on species and facility design. White rhinos, being more gregarious, can be maintained in small groups with social benefit; black rhinos are territorial and often require individual management except during breeding. The loss of mud wallowing — essential for skin protection and thermoregulation in the wild — is a significant welfare gap in many facilities that substitute with sand or water sprays. Behavioral enrichment for rhinos must address their bulldozer-like manipulation drive: enrichment items must be robust enough to survive rhinoceros investigation. Reproductive performance is a welfare indicator as well as a conservation metric — chronic stress suppresses reproduction, so breeding failure often signals welfare deficit. Protected contact management, now standard in accredited zoos, significantly improves keeper safety and reduces handling stress for the animals.