Thousands of chimpanzees formerly used in biomedical research need lifelong sanctuary care — retirement is a moral obligation that existing sanctuaries struggle to meet.
Chimpanzees used in biomedical research often spent decades in barren laboratory cages, frequently in social isolation. The transition to sanctuary requires careful reintroduction to conspecifics, introduction to outdoor space, and management of post-traumatic behaviors including fear, aggression, and stereotypies. Many arrive with chronic health conditions from research use. Their complex social needs mean group composition and management are ongoing welfare challenges. Lifetime care for hundreds of individuals represents a significant and often underfunded commitment.