The pygmy hippo is one of the world's rarest large mammals. Zoo populations are crucial for species survival, making welfare investment in captive management a conservation priority.
Pygmy hippo welfare in captivity takes on particular conservation urgency given the precarious status of wild populations. With fewer than 2,500 wild individuals and continuing habitat loss in their Liberian stronghold, the captive population represents a genuine insurance against extinction. This conservation function justifies significant welfare investment — pygmy hippos that are healthy, reproductively active, and behaviourally normal are both welfare-positive and conservation-positive. Their shy, solitary nature means enclosure design must provide visual seclusion and quiet, and social introductions require careful management. Positive reinforcement training has proven effective for routine health checks, reducing the welfare cost of veterinary procedures for this otherwise difficult-to-manage species.