Zoo Small Mammal Welfare | Animal Welfare Hub

Small mammals including meerkats, mongooses, otters and mustelids are popular zoo exhibits. Their welfare requires specific attention to social structure, activity budgets and environmental complexity.

Key Facts

Small mammals such as meerkats have complex wild social structures with dominant breeding pairs
Otters require large water volumes and complex terrestrial burrow systems to thrive
Mustelids have high activity levels and require enrichment that matches their energetic needs
Ferrets and similar species habituated to public contact can lose natural behavioural repertoires
Small mammal exhibits often prioritise visitor visibility over species-appropriate design

Welfare Considerations

Small mammals are frequently kept in exhibits designed for visibility rather than welfare. Meerkats require sandy substrate for burrowing, appropriate group sizes and clear social hierarchy management. Otters need flowing water, fish-foraging opportunities and extensive swimming space. Inappropriate group compositions in captivity cause chronic social stress evidenced by aggression, injury and reproductive suppression. Behavioural needs assessment for each species ensures enclosure design meets biological requirements rather than aesthetic preferences.

What You Can Do

Evaluate small mammal exhibits on complexity and behavioural opportunity rather than proximity
Support accredited zoos with species welfare standards developed in consultation with specialists
Engage with zoo education staff about behavioural research behind exhibit design
Avoid facilities where small mammals are used as petting or handling animals
Support In-situ conservation for wild mustelid and otter populations in the UK and globally