Rabbits are highly social animals whose welfare is significantly compromised by solitary housing, with pair and group bonding providing substantial psychological and health benefits.
Rabbit social housing welfare reflects the mismatch between the species' deeply social nature and the traditional practice of solitary pet rabbit keeping. Wild rabbits live in complex social groups where grooming, companionship, and social warning systems are integral to welfare. Solitary rabbits show elevated stress hormones, more stereotypic behaviours, and less positive behavioural repertoires than those housed in pairs or groups. The psychological benefit of appropriate social housing extends to physical health: rabbits housed in compatible pairs have lower gastrointestinal disease rates and better immune function, likely mediated through lower chronic stress. The bonding process requires patience and careful management: introducing unfamiliar rabbits without appropriate gradual introduction leads to serious fighting with injury. Neutral territory introductions with gradual scent familiarisation, followed by supervised interaction periods that are extended as the rabbits show positive social behaviours, typically achieve successful bonding within days to weeks. The mutual grooming that bonded rabbits perform is one of the most compelling indicators of positive welfare - a behaviour that cannot be performed alone and that reflects genuine social bonding. Pet shops and breeders that sell solitary rabbits without welfare information about housing needs bear responsibility for perpetuating suboptimal welfare.