Do Dogs Know When Another Dog Has Died? Signs of Grief and How to Help

A dog waits beside the door for a companion who is never coming home. They search familiar rooms, sniff an empty bed or suddenly refuse a meal they once shared every day.

It can look unmistakably like grief.

Dogs certainly notice when a familiar companion disappears, and many show lasting behavioural changes after the loss. What science cannot tell us is whether dogs understand the permanence of death in the same way humans do.

They may not comprehend death as an abstract idea—but they can still feel the absence of an important relationship.

Do dogs understand when another dog dies?

We cannot ask a dog what they believe has happened, so no study can prove that dogs understand death as permanent and irreversible.

They can, however, recognise immediate changes:

• Their companion no longer moves or responds

• A familiar scent begins to change

• Expected sounds and movements have stopped

• Shared routines have disappeared

• Social contact is suddenly missing

• The behaviour of grieving family members has changed

A dog does not need a human understanding of death to be affected by it.

The most accurate answer is that dogs recognise loss and absence, but we do not yet know whether they understand death itself.

Can dogs grieve?

Many dogs show behaviour consistent with grief-related distress after a canine companion dies.

A 2022 study collected reports from the owners of 426 dogs that had experienced the death of another dog in the household. Owners commonly noticed changes in attention-seeking, play, activity, sleep, eating, fearfulness and vocalisation.

The nature of the dogs’ relationship appeared particularly important. Behavioural changes were reported more often when the dogs had shared food, rested together or had a friendly relationship.

How long the dogs had lived together was less important than the quality of their bond.

However, this was an owner-reported study. The researchers recorded what people observed; they could not directly measure what the surviving dogs were thinking or feeling. An owner’s own grief may also influence how behavioural changes are noticed and interpreted.

The findings support the possibility of canine grief, but they do not prove that dogs experience death exactly as we do.

Signs that a dog may be affected by a companion’s death

Every dog responds differently. Some display obvious changes, while others appear to carry on normally.

Possible signs include:

• Searching the house or garden

• Waiting near doors and windows

• Checking the other dog’s bed

• Sleeping in the deceased dog’s usual place

• Becoming unusually quiet or withdrawn

• Following family members more closely

• Seeking more affection

• Avoiding attention

• Whining, barking or howling more frequently

• Sleeping more or struggling to settle

• Losing interest in walks, play or favourite activities

• Eating less or refusing food

• Becoming anxious when left alone

A dog that shows little visible reaction did not necessarily have a weak relationship with the companion who died. Dogs differ in temperament, attachment and how they respond to disruption.

Is it grief—or a disrupted routine?

The answer may be both.

Dogs build their lives around predictable patterns. Two dogs may eat together, walk together, share sleeping areas or react to each other throughout the day.

When one dies, the survivor loses the companion and the structure built around them.

The household may also change in other ways:

• Walks may happen at different times

• Feeding arrangements may change

• The home may become quieter

• The dog may spend more time alone

• Family members may cry, sleep poorly or behave differently

• Access to certain rooms or beds may change

A surviving dog could therefore be responding to social loss, disrupted expectations, human grief or a combination of all three.

Does a dog recognise a dead body?

A dog may detect that the body of a companion has changed.

The other dog is no longer breathing, moving or responding. Body temperature falls, and scent begins to alter. Dogs are highly responsive to scent and movement, so these differences are likely to be noticeable.

That does not tell us what conclusion the dog reaches.

A surviving dog might:

• Sniff the body briefly

• Remain nearby

• Appear hesitant

• Try to encourage a response

• Walk away with little apparent interest

• Avoid approaching altogether

None of these reactions proves that the dog understands death—or that they do not.

Should a surviving dog see their companion’s body?

Some owners feel it is important to give the surviving dog an opportunity to investigate. Others are unable or prefer not to do so.

There is no strong evidence that seeing the body helps every dog understand the loss or prevents later searching.

An earlier owner-survey study found behavioural changes following the loss of an animal companion, but it did not establish a clear benefit from allowing the surviving animal to view the body.

If you decide to allow it:

• Ask your vet whether it is safe, particularly if infection may have caused the death

• Keep the room calm and quiet

• Allow the surviving dog to approach voluntarily

• Never carry, drag or hold the dog beside the body

• Do not force prolonged contact

• Let the dog leave whenever they choose

• Supervise the interaction

• Follow veterinary advice on hygiene

A brief sniff followed by walking away is normal. Refusing to approach is also normal.

If your dog cannot see the body, this does not mean they will be unable to adjust.

Why does a dog keep searching?

Searching may be driven by memory and expectation.

A dog learns where and when their companion usually appears. They may check the garden, doorway, sleeping area or familiar walking route because those places remain strongly associated with the missing dog.

Scent traces can also remain around bedding, furniture and frequently used areas.

Repeated searching does not necessarily mean the dog believes their companion is hiding. It may reflect a familiar expectation that has not yet faded.

Why might a grieving dog stop eating?

Stress can suppress appetite, and the disappearance of a companion may make established mealtimes feel unfamiliar.

A dog that previously ate beside another dog may also have lost part of the social routine that encouraged them to eat.

However, appetite loss should never automatically be blamed on grief.

Pain, dental disease, infection, digestive problems, organ disease and other medical conditions can all reduce a dog’s appetite. UK veterinary charity PDSA advises contacting a vet when a dog’s eating habits change and seeking help very quickly if the dog has eaten nothing for more than 24 hours.

Contact your vet sooner if your dog is:

• A puppy

• Elderly

• Underweight

• Taking medication

• Living with an existing medical condition

• Vomiting or experiencing diarrhoea

• Weak, painful or unusually sleepy

• Drinking much more or less than normal

Do not simply wait several days because the dog appears to be grieving.

Can dogs sense that their owner is grieving?

Dogs notice changes in our voices, posture, movements and routines.

They may react when family members cry, sleep differently, withdraw from activities or behave less predictably. The home may also sound and smell different after another dog dies.

This means a surviving dog may be coping with two changes at once: the disappearance of their companion and the distress of the people around them.

Owners do not need to hide their grief. Maintaining a few familiar routines can simply provide reassurance during an unsettling period.

How to help a dog after the loss of a companion

Keep daily life predictable

Try to maintain familiar feeding times, walks, bedtime and opportunities to go outside.

Predictability can help a dog feel secure when so much else has changed.

Follow the dog’s need for contact

Some dogs become clingy and seek reassurance. Others want more space.

Offer affection and company, but allow your dog to move away or rest alone when they choose.

Encourage gentle activity

Calm walks, familiar games and time spent sniffing can provide healthy stimulation.

Do not force demanding exercise or highly exciting activities if your dog seems unsettled.

Monitor food, water and weight

Keep a close eye on:

• How much your dog eats

• Water intake

• Body weight

• Toileting

• Energy levels

• Sleep

• Interest in normal activities

A simple daily record can help you recognise whether the dog is gradually improving or becoming unwell.

Avoid constantly changing their food

Offering many rich foods may cause digestive problems or encourage a dog to reject their normal diet.

If appetite remains poor, ask your vet what and how to feed rather than repeatedly experimenting at home.

Do not punish unusual behaviour

Restlessness, vocalisation, accidents or increased dependence may reflect stress.

Punishment can add further anxiety without addressing the underlying cause.

Give familiar belongings time

There is no need to remove every bed, blanket and toy immediately.

Familiar scents may initially be reassuring. Items can be removed or washed gradually if that feels more appropriate for the household and the surviving dog.

Should you get another dog?

A new dog is not a replacement for the companion who died.

Some surviving dogs may eventually benefit from canine company. Others—particularly older, anxious or unwell dogs—may find a new arrival stressful.

Before bringing home another dog, consider:

• The surviving dog’s age and health

• Their previous relationships with other dogs

• Whether they genuinely enjoy canine company

• Their confidence around unfamiliar dogs

• Whether the family is emotionally ready

• Whether you can manage a careful introduction

Allowing everyone time to adjust is usually wiser than making an immediate decision in the hope that another dog will remove the grief.

How long can grief-like behaviour last?

There is no universal timetable.

Some dogs settle within days. Others may take several weeks or longer, especially when the relationship was close or the death caused major changes to everyday life.

Look for gradual improvement rather than expecting recovery by a particular date.

A dog who begins eating more normally, resting comfortably and showing renewed interest in walks or play may be adapting—even if they still occasionally search familiar places.

When should you contact a vet?

Speak to your vet if your dog:

• Stops eating or drinking normally

• Loses weight

• Vomits or develops diarrhoea

• Appears painful or physically unwell

• Becomes extremely withdrawn

• Cannot settle or sleep

• Develops severe distress when left alone

• Shows marked fear or aggression

• Stops enjoying activities they previously liked

• Continues to deteriorate instead of gradually adjusting

A veterinary examination can rule out illness and pain. If the problem is primarily behavioural, your vet may recommend a properly qualified clinical animal behaviourist.

Do dogs know when another dog has died?

Dogs clearly recognise that a familiar companion has disappeared, and many show behavioural changes consistent with grief-related distress.

They may also recognise that an unresponsive body smells, feels and behaves differently from a living dog.

What science has not established is whether dogs understand that death is permanent.

Perhaps the fairest conclusion is that they do not need to understand death in human terms for the loss to matter.

A familiar presence has gone. Shared routines have ended. An important social relationship has been broken.

Do Dogs Know When Another Dog Has Died? Signs of Grief and How to HelpWhatever a dog believes has happened, that experience deserves patience, careful observation and compassion.