When a companion animal or human caregiver dies, surviving pets experience behavioral and physiological changes indicating grief. Understanding and supporting bereaved animals improves their welfare.
Animal grief is a real welfare concern that pet owners and animal care professionals often underestimate or dismiss. When a bonded companion dies, the surviving animal loses not just a social partner but often a primary source of security, play, and grooming. The behavioral changes that result — reduced eating, disturbed sleep, increased anxiety — represent genuine suffering that deserves active management. Supportive interventions including increased human interaction, gentle introduction of new social companions, environmental enrichment, and in severe cases behavioral medication can significantly reduce the duration and intensity of grief responses. Recognition of animal grief also has implications for shelter management, where animals who have lost kennel companions may display grief behaviors that are misinterpreted as illness.