Capybaras are highly social South American rodents whose welfare in captivity depends critically on appropriate group housing and aquatic access.
Capybara welfare in captivity hinges on meeting their profound social and aquatic needs. Isolating capybaras or keeping them in small groups without established social stability causes chronic stress manifested as aggression, stereotypic behaviors, and reduced reproductive success. The pool or water feature in capybara enclosures must be large enough for multiple animals to enter simultaneously and deep enough for submergence, since shallow wading pools do not adequately meet their thermoregulatory and behavioral needs. Their continuous grazing behavior requires unrestricted access to fibrous food, and captive animals fed high-starch diets develop dental problems and metabolic disease. Capybaras as exotic pets raise particular welfare concerns since private owners rarely provide adequate group sizes, aquatic access, or space. The trend of capybara social media popularity has driven demand that welfare-conscious messaging must address.