Captive Primate Research Ethics | Animal Welfare Hub

Non-human primates used in biomedical research face welfare challenges including social isolation, experimental procedures, and the psychological complexity that makes captivity particularly harmful for highly intelligent species.

Key Facts

An estimated 60,000-70,000 non-human primates are used in research in the EU annually
Common marmosets are the most widely used primate species in European research
Social isolation for experimental reasons causes documented psychological harm in highly social primates
The 3Rs framework requires researchers to replace primates with other models where possible
Improved housing standards including group housing and enriched environments reduce stereotypic behavior substantially

Welfare Considerations

Primate research welfare involves a direct tension between scientific value and animal welfare harm that is more acute than for simpler species. The same cognitive sophistication that makes primates valuable research models makes their suffering in research conditions more severe. Social isolation, chronic mild stress procedures, and experimental treatments in cognitively complex animals cause welfare harms that persist and compound. Strong welfare standards in primate research — group housing, enrichment, pain relief — can substantially reduce but not eliminate the welfare cost.

What You Can Do

Support research into non-primate alternatives for studies currently requiring primates
Advocate for strong 3Rs implementation in research funding requirements
Donate to organizations developing and validating alternatives to primate research
Raise awareness about the welfare complexity of primate research
Engage with research institutions about their commitments to primate welfare standards