Japanese macaques are highly adaptable primates famous for bathing in hot springs, whose welfare depends on complex social group dynamics.
Japanese macaque welfare is intimately tied to social group stability. Subordinate individuals experience chronic social stress in large troops with steep hierarchies. Culling due to agricultural conflict disrupts social structures and causes significant suffering. Tourist feeding habituates animals to humans in ways that lead to conflict and may create nutritional imbalances. Long-term research has provided deep welfare insights from decades of individual monitoring.