The loss of a companion animal causes genuine grief comparable to losing a human family member, and the welfare implications extend to surviving animals in multi-pet households who also experience bereavement.
The welfare dimension of companion animal bereavement extends in two directions: the welfare of grieving owners whose pain is real and often inadequately supported, and the welfare of surviving companion animals who demonstrate grief responses of their own. Surviving dogs and cats show reduced appetite, increased vocalization, changed sleep patterns, and behavioral regression following the loss of a bonded companion. Supporting surviving animals through gradual reintroduction to normal routines, increased attention, and careful decisions about new companion acquisition benefits animal welfare.