Capybaras are the world's largest rodents, with strong social bonds and semi-aquatic lifestyles that require specific zoo management to ensure adequate welfare.
Capybara welfare in zoos is generally achievable at good quality when social and aquatic needs are met. Pool access is essential — capybaras that cannot submerge show elevated stress and thermoregulatory problems. Group housing of compatible individuals is required; solitary capybaras show depression-like behavioral indicators. Their grazing behavior requires access to appropriate grass and hay, and variety in diet provides behavioral enrichment. In walk-through exhibits, managing visitor-animal interactions is a welfare consideration — capybaras are generally tolerant of human presence but can become stressed by persistent chasing or unwanted handling by visitors. Dominant individuals in groups must be monitored for resource guarding behavior that prevents subordinates from accessing food and water. Overall, capybaras are among the more successfully housed zoo species when basic requirements of social housing, water access, and grazing are provided.