Non-human primates in research facilities require extensive enrichment and social housing to meet their complex behavioral needs. Positive welfare standards go beyond harm reduction.
Meeting the welfare needs of primates in research requires moving beyond merely preventing obvious suffering toward actively promoting positive experiences. Primates are cognitively complex animals who experience boredom, frustration, loneliness, and anxiety in impoverished environments. Comprehensive enrichment programs including puzzle feeders, novel objects, social housing with compatible partners, and outdoor access where possible dramatically improve behavioral indicators of welfare. Cooperative training using positive reinforcement represents one of the most significant welfare advances in laboratory animal care, enabling animals to participate in their own care and reducing procedural stress. The ethical justification for primate research depends partly on the quality of welfare provided.