Animals experience grief after losing companions - understanding and supporting bereaved pets through transitions protects welfare during vulnerable periods.
Animal grief is increasingly recognised as a genuine welfare experience, not anthropomorphism. Dogs that have lost a companion show measurable behavioural and physiological changes consistent with grief. Supporting bereaved animals through this period involves maintaining routine, providing additional human interaction, and avoiding hasty introductions of replacement animals before the individual has adjusted. For owners who have lost a pet, their grief is also real and supported by the human-animal bond research. Welfare support for bereaved animals and their owners is an under-recognised area of companion animal welfare.