The mountain gorilla (Gorilla beringei beringei) has become one of conservation's greatest success stories — the only great ape with an increasing wild population. From approximately 620 individuals in 2008 to over 1,000 today, thanks to protection, anti-poaching enforcement, and community conservation programs in the Virunga Mountains (Rwanda, Uganda, DRC) and Bwindi Impenetrable Forest (Uganda).
Welfare considerations in mountain gorilla conservation include: respiratory disease transmission from tourists (strict habituation protocols and distance rules protect gorilla health); snare injuries requiring veterinary intervention; and stress from habituated gorilla groups' exposure to human presence. The Mountain Gorilla Veterinary Project (now Gorilla Doctors) provides dedicated veterinary care.
Orphaned and rescued chimpanzees from DRC, Rwanda, Uganda, and Congo are cared for at sanctuaries including Ngamba Island Chimpanzee Sanctuary (Uganda) and Sweetwaters Chimpanzee Sanctuary (Kenya). These sanctuaries apply welfare standards addressing social housing, behavioral enrichment, and veterinary care. Chimpanzees' long lifespans and complex social needs make sanctuary management a decades-long welfare commitment.
Lakes Nakuru, Bogoria, and Natron host millions of lesser flamingos (Phoeniconaias minor) — one of the world's largest bird concentrations. Flamingo welfare is affected by: algal bloom toxicity events, water level fluctuations, and periodic mass mortality events from unknown causes. Lake Natron (Tanzania) is the primary breeding site; proposed industrial development has been repeatedly opposed by conservation organizations concerned about welfare and population impacts.
The annual wildebeest migration — 1.5 million wildebeest, zebras, and gazelles cycling through the Mara-Serengeti ecosystem — creates extraordinary welfare events. Mara River crossings involve significant mortality from drowning and crocodile predation. Individual welfare during crossings is acute and intense. The migration's continuation depends on protected corridor maintenance — fencing disrupts migration routes and dramatically increases welfare costs through mass starvation and mortality.