Pygmy marmosets are the world's smallest primates, native to South American rainforests. Their welfare in captivity requires specialized attention to their unique social structure and dietary needs.
Pygmy marmoset welfare depends critically on maintaining appropriate family group structure. Their cooperative breeding system means offspring are cared for by older siblings and fathers, not just mothers — disrupting this structure impairs both individual welfare and reproductive success. Their specialized gum-feeding behavior can be partially replicated with specialized gum feeders and tree bark scored to allow gouging. Their extremely small size makes temperature management essential. Ultrasonic communication monitoring is increasingly used by specialist facilities to assess welfare states that are invisible to human observation alone. Their small size belies their complexity — they require the same commitment to social and behavioral enrichment as any primate.