Animal Grief and Mourning: Evidence and Welfare Implications

Growing evidence from multiple species documents grief-like responses following loss of companions, with welfare implications for how we manage animal bereavement in companion and farm settings.

Key Facts

Elephants show prolonged responses to the death of family members including returning to remains and touching bones
Chimpanzees have been documented carrying deceased infants for days to weeks after death
Dogs show behavioural changes after the loss of companion dogs including reduced activity, appetite, and social engagement
Corvids including crows and jays exhibit gatherings around dead conspecifics that may serve social learning functions
Mares separated from their foals and cows from their calves show distress vocalisations and searching behaviour for days
The neurobiology of social bonding and grief in mammals shows homology with human grief responses

Welfare Considerations

Evidence of grief-like responses in animals has direct welfare implications for management decisions. In companion animal settings, the loss of a bonded companion dog or cat can cause welfare compromise in the surviving animal requiring management. Single-animal households losing their sole companion may benefit from early introduction of a new companion or increased human interaction during the bereavement period. In farm settings, the sudden separation of socially bonded individuals causes measurable acute distress; this applies to cow-calf separation, removal of individuals from established groups, and slaughter transport that permanently separates bonded pairs. Recognition of animal grief is not anthropomorphism but evidence-based acknowledgment that social bond disruption causes negative affective states in species with the neurobiological capacity to form strong bonds.

What You Can Do

Provide additional attention and environmental enrichment to companion animals following the loss of a bonded companion
Monitor surviving companion animals for signs of prolonged behavioural change following bereavement and consult a vet if concerned
Consider introducing a new companion animal at a pace that respects both the surviving animal and the newcomer
Support farm management practices that maintain stable social groups and minimise sudden separation of bonded individuals
Engage with the science of animal grief and social bonds to deepen understanding of animal emotional lives