Foster programs are one of the most effective welfare interventions in companion animal management — reducing shelter confinement time, improving socialization, and saving lives.
Shelter confinement causes progressive behavioral deterioration — animals housed for weeks or months in high-stress shelter environments become increasingly difficult to adopt. Foster programs interrupt this deterioration by placing animals in home environments where normal companion animal behavior can develop or recover. Neonates who would die in shelters without intensive care survive in foster homes. The welfare benefit of fostering is one of the best-evidenced interventions in companion animal management.