The loss of a pet causes genuine grief in humans, and evidence suggests that surviving companion animals in the household also experience significant behavioral changes after bereavement.
Animal bereavement in surviving pets is well-documented, particularly in species with strong pair bonds or established social hierarchies. Dogs who lose a companion may show signs consistent with depression for weeks to months. Cats may search for absent companions and show reduced social engagement. Supporting bereaved animals requires maintaining routine, providing additional positive social interaction, and allowing appropriate time for adjustment before introducing new animals. Human grief support after pet loss is equally important and should be taken seriously by veterinary professionals.