White rhinoceros welfare in zoos differs dramatically between the recovered southern species and the critically endangered northern white rhinoceros, where only two females remain alive.
White rhino zoo welfare spans two very different conservation situations. Southern white rhino welfare in zoos has been refined over decades of managed population growth — social housing, large exhibit space, substrate management, and behavioral enrichment are well-established. Northern white rhino welfare exists in a unique and poignant situation — Najin and Fatu at Ol Pejeta are the last two individuals, under 24-hour monitoring and veterinary care with access to large natural habitat. Their welfare situation is excellent by any objective measure while being simultaneously heartbreaking as the last of their kind. The IVF program using eggs retrieved from the surviving females and stored sperm from deceased males represents the frontier of reproductive conservation technology.