Companion Animal Grief: When Pets Lose Their Companions

Animals including dogs, cats and other companion species demonstrate grief responses when bonded companions die, requiring sensitive management and appropriate support.

Key Facts

Dogs show measurable behaviour changes including reduced appetite, increased vocalisation and searching after companion loss
Cats may spend extended periods in locations associated with their deceased companion
Elevated cortisol and altered sleep patterns have been documented in bereaved companion animals
The duration of grief responses in companion animals varies widely — some recover quickly, others show prolonged changes
Allowing grieving pets to sniff the deceased companion's body may help them process the loss
Introduction of a new companion should be timed carefully — too soon may cause conflict during grieving

Welfare Considerations

Companion animal grief is real and welfare-relevant. Dogs and cats that lose bonded companions show measurable distress that deserves acknowledgement and appropriate management rather than dismissal. The common response of immediately acquiring a replacement companion can inadvertently add conflict stress to grief stress. Allowing time for grieving, providing additional human interaction during recovery, and introducing new companions only when the bereaved animal has stabilised provides welfare-sensitive support. Human owners dealing with their own grief over the deceased companion deserve support recognising both dimensions of loss.

What You Can Do

Allow your surviving pet time to adjust to companion loss before introducing a replacement
If possible, allow your surviving pet to spend time with the deceased to help process the loss
Provide increased human companionship and gentle play during the adjustment period
Monitor your surviving pet's eating and sleeping for signs of prolonged grief requiring veterinary attention
Consider the timing and nature of introducing a new companion thoughtfully rather than rushing