Most pet loss advice is written for the human. Less gets said about the dog or cat who's still here, pacing the hallway, waiting by the door, not eating like they used to. If you've noticed your surviving pet acting strange since their companion died, you're not imagining it. Animals grieve. They just can't tell you so directly.
This is the part of loss that catches people off guard. You're already carrying your own grief, and now you're watching your remaining pet struggle too. Here's what that can look like, and what actually helps.
Signs your pet is grieving
Every animal processes loss differently, but a few patterns show up again and again.
- Searching. Checking the usual spots — a bed, a crate, a spot by the window — over and over, like they expect the other pet to be there.
- Appetite changes. Eating less, eating slower, or ignoring food entirely for a day or two.
- Low energy. Sleeping more, moving less, seeming flat or uninterested in walks and play.
- Vocalizing. Whining, meowing, or barking more than usual, especially at times the other pet used to be present.
- Clinginess. Following you room to room, wanting to be touched or near you constantly.
- Withdrawal. The opposite can happen too — some pets pull back and seem harder to reach.
These behaviors usually show up within the first few days and can last anywhere from a couple of weeks to a couple of months. There's no fixed timeline. Some pets bounce back quickly. Others take longer, especially if the bond was close or they were together for years.
What helps a grieving pet
Keep the routine steady
Grief is disorienting enough without the schedule falling apart too. Keep feeding times, walks, and bedtime as consistent as you can. Predictability gives a grieving animal something solid to hold onto.
Don't force new company too soon
It's tempting to bring home a new pet right away to fill the gap. Give it time first. A surviving pet needs space to adjust before being asked to bond with someone new, and rushing it can create stress instead of comfort.
Offer more of your attention, not less
Extra affection doesn't spoil a grieving pet or reward sad behavior — that's an outdated worry. Sit with them. Let them lean on you. A few extra minutes of calm attention each day can make a real difference.
Encourage movement and appetite gently
If your pet is eating less, try warming up their food slightly or adding something appealing like a bit of broth. For dogs, short, low-key walks can help more than forcing a full routine right away. For cats, interactive play — even brief — can help pull them out of a flat mood.
Watch for signs that need a vet
Grief can look like illness, and sometimes it overlaps with one. If your pet refuses food for more than a day or two, loses noticeable weight, or seems lethargic beyond what feels like normal mourning, call your vet. It's worth ruling out anything medical, especially since loss can also follow the death of an older pet who may have shared underlying health issues.
Let them see the body, if possible
Some behaviorists believe pets who are able to see or sniff a deceased companion's body understand death better than pets who simply find their companion gone one day. If circumstances allow it — for instance, a pet who dies at home or during an in-home euthanasia — giving the surviving animal a calm moment near the body may help with the confusion of a sudden absence.
When grief doesn't look like grief
Sometimes a surviving pet doesn't seem sad at all. They might seem more relaxed, more playful, even happier. This doesn't mean they didn't care. Relationships between pets vary as much as relationships between people — some were close companions, others simply coexisted. Don't read guilt into a lack of visible mourning.
Taking care of yourself too
It's easy to focus entirely on the surviving pet and forget your own grief needs tending as well. Watching an animal search for their lost companion can bring fresh waves of sadness. Give yourself the same patience you're giving them.
Many people find comfort in keeping something tangible to remember the pet who passed — a photo nearby, a small keepsake, something the surviving pet can still see or smell. If you're looking for a lasting way to hold onto that bond, you can make your pet's portrait and keep their memory present in your home.
Frequently asked
How long do dogs grieve after losing a companion pet?
It varies widely, but many dogs show grief behaviors for a few weeks up to a couple of months. Close bonds or long companionships can extend that timeline.
Should I get a new pet right away to help my grieving dog?
It's usually better to wait. Give your surviving pet time to adjust to the loss before introducing a new animal, so they're not managing grief and a new relationship at once.
Why is my cat not eating after another pet died?
Appetite loss is common during grief, but if it lasts more than a day or two, or comes with noticeable weight loss or lethargy, contact your vet to rule out other causes.
Do cats grieve the same way dogs do?
Cats can show similar signs — searching, changes in appetite, clinginess, or withdrawal — though they often express it more subtly than dogs do.
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