What the Science Says About Dogs and Grief
Yes, dogs grieve. Research shows 86% of dogs display behavioral changes after losing a companion, with the same stress hormones and brain changes humans experience. However, dogs don’t grieve like we do. They react to the loss of routine, social structure, and the absence of a bonded companion, not to an understanding of death itself. Your job is to maintain calm stability and consistent routines while your dog recalibrates to their new normal.
Dogs absolutely grieve after losing a companion. A 2022 Italian study of 426 dogs found that 86% showed negative behavioral changes after a companion’s death, with elevated cortisol, lowered oxytocin, and changes in brainwave patterns mirroring human grief responses. But the way dogs process loss is fundamentally different from humans.
Dogs don’t think about the past or future the way we do. They don’t understand forever. What they do understand is that their social structure has changed, their daily routines are disrupted, and someone they were bonded to is no longer responding. Research from 2024 discovered that dogs and their companions actually sync their brain waves, and when one dies, the surviving dog’s brain has to recalibrate without that connection.
Common grief behaviors include searching for the deceased pet in their usual spots, changes in vocalization like whining or howling, loss of appetite (reported in 32% of grieving dogs), sleep disruption, and either social withdrawal or extreme clinginess. Some dogs show no obvious signs at all. Every dog is an individual, and grief responses vary widely.
Your dog’s grief can also mirror your own. Research shows a strong link between how intensely the owner grieves and how severe the dog’s behavioral changes become. Dogs pick up on our emotional state, so maintaining calm, steady energy while you process your own loss helps your dog through theirs.
The most important thing you can do is maintain routine. Keep feeding times, walking times, and training sessions as consistent as possible. Dogs rely on routine and ritual, and when their social world is already unstable, consistency in their daily structure becomes critical. Training work is especially valuable because it pulls both your brain and your dog’s brain out of emotional limbic mode and into problem-solving mode.
If you’re considering our Board & Train program in Charleston to help rebuild structure and confidence in a grieving dog, we can discuss timing and approach based on where your dog is in the process. Grief is real, but so is your dog’s ability to adapt and heal with the right support.
Ready to get started? Learn more about our Board & Train program in Charleston.
Frequently Asked Questions
Do dogs understand death when another pet dies?
Dogs have a minimal concept of death. They know something is different and their companion is not responding, but they don’t understand forever. When a dog sniffs a deceased companion, they register that the smell is different, there’s no heartbeat, and there’s no breathing, but they don’t grasp the permanence of the loss the way humans do. Their grief is a reaction to the change in social structure and routine, not an understanding of mortality.
What are the signs that my dog is grieving after losing another pet?
Common signs include searching behavior (going to the deceased pet’s favorite spots or beds), changes in vocalization like unusual whining or howling, loss of appetite, sleep disruption (pacing at night or sleeping more than usual), social withdrawal or extreme clinginess, and changes in activity level. Some dogs show no obvious signs at all. In multi-dog homes where the leader dog dies, survivors often show extreme anxiety because they lost their source of direction.
How long does grief last in dogs?
Every dog is different. Some dogs recalibrate within days, others take weeks or months. The research suggests waiting at least 3 to 6 months before introducing a new dog because the surviving dog’s social hierarchy is still in flux during that time. However, the actual duration of grief behaviors depends on the individual dog, the strength of the bond with the deceased companion, and how well you maintain routine and stability during the transition.
Why did my dog stop eating after our other dog died?
Loss of appetite is one of the most common grief behaviors, reported in 32% of grieving dogs in research studies. The drop in oxytocin (the bonding and reward hormone) that accompanies grief means food doesn’t give your dog the normal reward feeling anymore, at least temporarily. If your dog refuses all food for more than 48 hours, contact your veterinarian to rule out medical issues, as stress can also trigger health problems.
Should I let my dog see the body of my deceased pet?
There’s no universal answer, but many dogs do sniff a deceased companion’s body and then move on. They register that something is different (no heartbeat, different smell, no response), which may help them understand the companion is gone. However, dogs don’t need closure the way humans do. Whether or not you allow this, maintaining routine and stability afterward is what matters most for your dog’s adjustment.
Does my grief make my dog’s grief worse?
Yes, it can. Research shows a strong link between how intensely the owner grieves and how severe the dog’s behavioral changes become. Dogs mirror our emotional state. If you’re in acute grief with intense crying or anger, it can increase your dog’s stress. You don’t have to hide your grief entirely, but maintaining calm, steady energy when directly interacting with your dog helps them stay stable. If you need to grieve hard, step into another room for a few minutes so your dog doesn’t absorb that energy.
What’s the best way to help my dog through grief after losing a companion?
Maintain routine. Keep feeding times, walking times, and training sessions as consistent as possible. Dogs rely on routine and ritual, and when their social structure is disrupted, consistency in their daily habits becomes critical. Do your normal walks, do your normal training work (even just basic sits, downs, and stays), and keep your energy calm and steady. Training is especially helpful because it pulls your dog’s brain out of emotional limbic mode and into problem-solving mode. Nose work games can also help re-engage dogs who have lost their appetite.
When is it okay to get another dog after one dies?
Veterinary consensus suggests waiting at least 3 to 6 months before introducing a new dog, as rushing can cause social friction and aggression while the surviving dog’s hierarchy is still unstable. However, the real answer is: when it’s right for you and your family. Don’t rush to replace the dog you lost, and don’t compare a new dog to the one that died. Every dog is an individual. Get a new dog when you’ve had time to grieve and are ready to take on that responsibility, not because you think it will fix your surviving dog’s grief.
