Dogs experience a form of mourning when another dog in the household dies

Research finds behaviour changes in dogs who have lost a canine companion

The research found that 86% of owners said their surviving dogs had shown behavioural changes after the death of another canine in the household.

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The loss of a loved one can have a profound impact on humans, affecting everything from sleep patterns to appetite. Now researchers say they have found similar behaviour changes in dogs who have lost a canine companion.

While the team say it is not clear if the findings can be described as grief, they say the work potentially indicates an overlooked welfare issue.

Dr Federica Pirrone of the University of Milan, who is one of the study’s authors, said: “Dogs are highly emotional animals who develop very close bonds with the members of the familiar group. This means that they may be highly distressed if one of them dies and efforts should be made to help them cope with this distress.”

Expressions of grief are not unique to humans: great apes, dolphins, elephants and birds are among species that have been observed to take part in rituals around death and appear to mourn.

Writing in the journal Scientific Reports, Pirrone and colleagues describe how they analysed the responses of 426 Italian adults who completed a “mourning dog questionnaire” online to investigate how canines experience grief.

All of the participants had experienced the loss of one of their dogs while at least one other dog was still alive, and the questionnaire looked at the behaviour and emotions of the owner and their surviving dogs after the death.

The results reveal that 86% of owners said their surviving dogs had shown behavioural changes after the death of another canine in the household.

Pirrone said: “Overall, dogs were reported to play and eat less, sleep more and seek more for owners’ attention.” She said the results did not appear to be affected by the level of attachment between the owner and their dog or whether they humanised their pets, suggesting the owners were not simply projecting their grief.

The team said the changes did not turn out to be linked to how long the dogs had lived together or whether the surviving dogs had seen the corpse.

The researchers said there were a number of possible explanations for the findings, including that the death may have disrupted shared behaviours for the surviving dogs.

“In support of this hypothesis we found that if dogs used to share food during life, the surviving dog was more likely to reduce her/his level of activities and sleep more after the loss,” the authors wrote.

The results also revealed behavioural changes were stronger for dogs that were reported to have had a friendly relationship with the animal that had died, or who had been their parent or offspring.

“Most likely this means that the surviving dog has lost an attachment figure, who provided safety and security,” said Pirrone.

Human emotions may also play a role: increases in the surviving dogs’ levels of fear and a reduction in food consumption were associated with greater suffering, anger and psychological trauma in the owners in response to the death.

“This means that there might have been some form of emotional contagion or of social transmission of fear, that is common in social species as part of an adaptive coping strategy with potentially dangerous circumstances,” said Pirrone. The team said, however, the finding could also be linked to owners’ perceptions of the surviving dogs’ behaviour or emotions.

Pirrone said the definition of “grief” in dogs, as for young children, was not straightforward.

“Dogs do form emotional bonds, and hence the loss of a companion animal in their household can be expected to cause behavioural changes, like those we recorded in our study, which overlap what we normally interpret as being grief and mourning,” she said. “Of course, based on our results we still cannot tell whether these dogs were responding only to the ‘loss’of an affiliate, or to their ‘death’ per se.”

Prof Samantha Hurn, a social anthropologist at the University of Exeter, said it was important to understand what a dog may experience upon the death of a canine companion, but added the study had limitations, including that owners were not always good at reading dog behaviour, while the use of questionnaires involving scales for such a subjective issue may limit the conclusions that can be drawn.

She said: “In the course of my own research I have experienced many dogs and other animals behaving in very different ways, but ways which nonetheless suggested to me that they were emotionally impacted by the death of a close companion.”

Complete Article HERE!

Loyal dog and veteran pass away within hours of each other

A dog’s loyalty to its owner is unshakeable. Even during the toughest times, they will remain by their human’s side.

By iHeartDogs.com

Gunner, an 11-year-old lab, was an extremely loyal pooch.

He has never left Daniel Hove’s side. Everywhere his human went, he was there. They turned out to be hunting buddies and best friends, too.

When Daniel received his pancreatic cancer diagnosis, Gunner was with him.

Even though he was a big dog, he’d go to Daniel and the two would cuddle up together. They’d spend an entire day like that.

“They were best buddies till the end. They were hunting buddies, they went everywhere together,” Daniel’s daughter, Heather Nicoletti, said in an interview Kare 11.

The Air Force veteran and his dog were literally inseparable.

Eventually, though, Gunner fell ill.

This was a bit expected, as the family noticed how incredibly in sync the two were.Daniel’s daughter, Heather, shared that she and her family more or less based their expectations of her dad’s daily health off of his dog.

“My dad was unresponsive, the dog was unresponsive. So once we saw how the dog was doing–he wasn’t moving much anymore, not doing well– we knew, it was coming.”

One day, Gunner grew listless.

His arms began to swell and he fell more ill. At that point, Heather knew that it was time to say goodbye to her dad’s dog.

She called the clinic she used to work at. When she got there, they put her dad’s long-beloved dog to sleep. He was right there beside him as he passed.

Within just an hour and a half, Daniel was gone too.

Knowing what happened to Gunner, the family couldn’t help but feel that the loving veteran would be gone soon as well. They did everything together, after all.

“Gunner could not be without my dad. I think he chose to go with him,” Heather continued.

However, they didn’t expect them to pass away within such a short time of each other. Losing both of them within the span of 90 minutes dealt a heavy blow to the ones that Gunner and Daniel left behind.

The family was devastated.

It’s always so sad to say goodbye to someone close to your heart. For Heather, she took comfort in the fact that her father never really had to say goodbye to his devoted, loving, and loyal dog.

In a sense, his passing couldn’t have gone any better. He wouldn’t be making the trip to the afterlife alone. His best friend was now with him even into eternity.

Now, Daniel and Gunner get to be together forever, pain-free.

In that sense, at least, the family was able to spare them from the pain of saying goodbye to each other.

“I had said I don’t know what’s going to be more traumatic for him. To try to take him away to end–to put him to sleep– to end his suffering, or if you let him live through dad dying. I think either way it’s going to kill him. We knew they were going to go together. We just didn’t know it was going to be hours apart,” -Heather shared.

Complete Article HERE!

Why I Decided To Have A Wake For My Dog

“I hated the idea of saying goodbye to our beloved shelter pup in a sterile exam room — she despised vet visits.”

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The end was near.

In her final weeks and months, our old dog, Daisy, had trouble with her legs, struggling painfully to stand up or lay down and occasionally getting her front feet tangled. The vet theorized that she had a tumor on her spinal column, but at her age (16 or so) surgery was too dangerous.

The focus turned to comfort care and the looming question of when.

Then Daisy — always a bit of a neat freak — started losing control of her bowels and bladder. Her hip and leg pain seemed to be worsening. Eyesight and hearing were going. It was clear that she was suffering.

I hated the idea of saying goodbye to our beloved shelter pup in a sterile exam room — she despised vet visits. I also didn’t want to leave her body with strangers, albeit kind ones. After seeing our family through 14 years of good and bad times, I felt a duty to honor Daisy by caring for her body myself.

We booked a home euthanasia appointment with a licensed vet. I started poking around the internet for information on postmortem care.

When the day came, the vet was wonderfully calm and kind. Daisy laid on a cherished blanket taken from my late father-in-law’s house. It was a beautiful day, the March sun melting a recent snowfall, birds chattering in the trees.

She passed so quietly. I’d given myself permission to let it all out, so once the vet confirmed she was gone, I held her and wailed.

Then the work began. It was hard. It was scary. It was terribly sad. But I also felt like I did right by our beautiful friend.

If you have an animal companion you’d like to honor with a wake of your own, here are a few tips I can pass along.

Learn About The Euthanasia Process

The basic order of events is basically the same, whether at home or at the vet clinic. The vet administers a sedative that puts the pet into a deep sleep. Once they’re out, another drug is injected that stops the animal’s heart. And that’s it.

It costs more to have the vet make a house call, but it was totally worth it for us. Daisy fell asleep with the taste of steak in her mouth and with my husband and me at her side. We petted her and whispered in her enormous ears the whole time. Her breathing quickened a bit after the fatal drug went in, then it slowed, then it stopped.

Talk It Over With The Family

We have two kids, ages 4 and 8, who’ve never experienced a loved one’s demise. They knew Daisy was old and would probably die soon, so we explained a couple of weeks prior that the visiting vet would speed her transition to prevent further suffering.

From there, I let them decide how — and if — they wanted to participate. My 8-year-old son preferred to stay out of it. My 4-year-old didn’t want to attend the procedure (a relief), but she helped decorate Daisy’s body with flowers afterward, and gently petted and kissed her as we sat with her that afternoon.

Not everybody wants to get this close-up to death, and that is absolutely understandable.

Get Childcare If You Can

I was fortunate my mom and sister were available to help out that day. We didn’t have to worry about what the kids were up to while we said goodbye, and I think having some extra family at home was a comfort for everyone.

If the kids will be around, consider scheduling the euthanasia appointment for later in the day — that way bedtime won’t be too far off and you can (hopefully) have some space to grieve.

It Won’t Be Gross

There’s a misconception that dead bodies are instantly grotesque, all leaking fluids and lolling tongues. Not true. The body still looks like your loved one. Fur is soft. Ears are floppy. The body stays warm for a while.

The only slightly yucky thing that happened: When my husband hoisted Daisy up to move her body, a little pee dribbled out. Nothing we hadn’t seen before.

You Have Time

After your pet passes, there’s no need to rush. Rigor mortis — the phase of death that causes tissues to stiffen —  takes two to three hours to set in. You have that time to hold your dearly departed, cry, snuggle, say a prayer, whatever you want.

Keep Ice On Hand

Ice keeps the body cool, staving off the beginnings of decomposition. We filled an old plastic baby pool with bags of ice, covered that with a tarp, then put a blanket on top for a cozier look. Daisy laid on the blanket, appearing to be in a deep slumber.

It helped that it was cold in the garage, too — warmer temps require replacing ice as it melts.

Plan For Your Needs

Once the novelty of having a dead dog in the garage wore off, our kids were back to their usual snacking requests.

I hadn’t thought much about the, uh, catering, so I was left trying to arrange meals for people between bouts of tears. Have frozen stuff ready to go, get something delivered, whatever works — just make the plan in advance so you’re not trying to create menus while in the throes of new grief.

Go Easy On Yourself

There’s no wrong way to do any of this. If the idea of an at-home dog wake is bizarre to you, that is totally fine. If some parts sound nice, but others don’t? Also fine. The key is to lock into what works for your family and go from there.

Daisy’s home wake felt like the grieving equivalent of ripping off a Band-Aid. I cried more, and harder, in those 24 hours than perhaps I ever had. But it also helped me, on some primitive level, truly accept her loss.

Taking care of her on her last journey took a little of the sting out of it all. She had a good life — and a good death.

Complete Article HERE!

‘We Run Pet Hospice Care For Dying Animals’

Dr. Shea Cox is a vet who helps support pets with hospice and palliative care.

By Dr. Shea Cox

I didn’t grow up with pets but I remember wanting to be a vet since I was 8 years old and working on my stuffed animals as if they were patients. I went into college wanting to be a vet but I failed chemistry three times and ended up going to art school.

In 1991, I moved to LA on a whim. I was broke and looking for a job and ended up working in a nursing home. That led me to nursing school and chemistry started to click. I worked in areas of home hospice and palliative care. That dream never left and I began to think that maybe I could be a vet.

I started taking my prerequisite classes for vet school, and I continued nursing actually to pay my way through vet school. I finally graduated vet school in 2001 and went directly into emergency and critical care.

I spent 13 years working in a veterinary ER​, and during this time, our care evolved and we became a specialty hospital with internal medicine and oncology​. I started to see that during the most critical time in people’s relationship with their pet, when pets were ill or had multiple comorbidities, people would need more time to process complex issues and decisions and they weren’t getting it. We would diagnose their pet with cancer in the ER and people would be left in that state of shock.

I felt like we were failing, and I decided I was going to start offering services strictly focused on hospice and palliative care for pets. But in 2012, when I started offering three hour in-home appointments, people told me that the idea wasn’t financially viable. I said I was going to try. I felt in my heart it was what people and pets needed.

My first hospice patient was a dog named Sunny. Sunny was brought into our veterinary ER with multiple urinary issues by her owner’s fiance, because he was in Colorado at his father’s funeral. I did an exam and discovered it was a tumor that was blocking the urethra so the pet wasn’t able to urinate. It was a situation that is technically one where we would euthanise the animal. But I discovered that Sunny was the pet that had got the owner through his wife’s death. I so clearly remember being in the ER and finding all of this out about the owner and realizing that he could not come back to be with Sunny and say goodbye.

I ended up providing Sunny with an in-dwelling urinary catheter, something which should be in-hospital only. I remember others saying we couldn’t send Sunny home with this catheter, but the alternative was euthanasia, breaking this human/animal bond, not allowing the owner to say goodbye.

Sunny was able to go home and three days later the owner returned and they spent an amazing two weeks together. They managed the catheter and completed their bucket list. Sunny swam in the ocean with her owner and they had a huge party with other dog friends where they ate grilled filet mignon and had these “pupsicle” ice creams. We were able to facilitate a goodbye on the lawn of his house. To be able to create that kind of goodbye for someone, when the alternative would be so different, was life changing for me as a person and a doctor. That is a situation that has lived with me and been my north star since I started this.

For me, hospice and palliative care begins at the time of diagnosis, when there are signs of decline in the pet, because there is so much we can do to improve quality of life and prepare the pet and pet parent. We have had pets in hospice for 18 month to 2 years, so that’s technically palliative care.

Hospice care is done in the pet’s home. We are under the umbrella of the Pearl Pet Hospice but our goal is to be that bridge between the hospital and the home. One of the things I found interesting early on in these 3 hour in-home appointments was that 75 percent of the care people needed help with was non-medical.

Families typically need help planning and goal setting for how they wanted their pet’s end of life to look, help deciding what their bucket list was going to be, whether they wanted a memorial. We discuss what they are struggling with and what their resources are. A lot of the topics are things vets aren’t typically able to address with families because there’s just not the time.

When a family enters their pet into our hospice program, they have an entire team on their side to support them every step of the way. Families work with me, a dedicated nursing team, care coordinators and pet loss support specialists. During our in-home appointment, we educate and empower the family, including in how to recognize signs of decline, how to give medications or injections, and how to monitor progression of their pet’s disease. Following this, the majority of our care continues virtually via telehealth where the family has 7-day a week access to their hospice team for guidance and support until the time of in-home euthanasia. Generally, the pet’s quality of life sky rockets, and the time to euthanasia is generally much farther out than what their pet’s diagnosis would dictate. I’m surprised every day by the difference we can make, and that just makes my heart so full.

Dr. Shea Cox and a Pet Patient
Dr. Shea Cox with Claire, a pet sibling to Sunny, the first animal she helped in hospice care.

The vast majority of my hospice patients are dogs and cats, it is a little more weighted towards dogs, which is surprising since cats don’t generally like to go into hospitals as much. I have had a couple of bird patients. When birds can live for 80 years, people are very bonded to them.

I have helped thousands and thousands of pets in hospice care. I have been doing this close to 10 years and as we have grown as a team, we’ve been able to affect a lot of lives, which is amazing.

Over the past 10 to 15 years I think the human/animal bond has changed dramatically. Millennials are now the largest pet owning population and their pets are their children. When I started this in 2012 in the Bay Area of California, there were four other practices doing something similar. Now I believe there are close to 30. That area may have a unique demographic that supports that but I am seeing this trend across the country.

Pet hospice care is growing pretty rapidly. It has been widely known for around 10 years and in the past five years there has been a large increase of practitioners. The International Association of Animal Hospice and Palliative Care (IAAHPC) is an organization where in the earlier days there were just a couple of hundred of us and now there are close to 2,000 members.

People often say they wish they had known about this for their last pet, or
sooner, and that’s something I want to erase from people’s thoughts. I want everyone to know this is available. The other thing I hear a lot is people asking me how I can do this every day, because it must be so sad and make me depressed. Oddly it’s just the opposite. I spent 13 years in the ER doing everything I could to save lives and I have never been so gratified as being able to end them well. People are so grateful that you are taking the time with them and being caring during one of the most intimate times in their relationship with their animals. Of course, it is sad and I still get teary at every euthanisia, but I leave with my heart so full that it’s hard to say this is anything but the most amazing career in the world.

Complete Article HERE!

Hospice staff help dying animal lover see her dogs and horse for one last time

Jan Holman, 68, had been away from her beloved pet dogs and horse for six weeks and was missing them all until she received a special visit – facilitated by her hospice

Jan was happy to be reunited with her dogs Monty and Rowley

By Millie Reeves

A terminally ill woman has had the chance to say goodbye to her two dogs and horse thanks to hospice staff.

Jan Holman, 68, was admitted to hospital six weeks ago and is now a patient at the Hospice of the Good Shepherd in Chester.

Her quick referral to the hospice meant she hadn’t had a chance to say goodbye to her dogs, Monty and Rowley, or Bob, her horse of 10 years.

Due to the pandemic Jan was unable to have any visitors at the hospital, and her husband of 46 years, Dennis, said she found having no visitors or personal contact difficult.

After four weeks, Jan was moved to the hospice to receive end-of-life care.

Knowing Jan was also missing her animals, the hospice arranged for a visit from her two Cavalier King Charles Spaniels, Monty and Rowley, as well as her horse, Bob.

Even though she was unable to get out of bed, Jan was excited to have the chance to see the gang one more time.

Dennis said: “It was just such a relief once Jan was moved from the hospital to the hospice in Chester and we were able to have named visitors who could come and see Jan regularly, however we never imagined that we would be able to include Monty, Rowley and Bob on the visiting list.”

Staff brought in Jan's two Cavalier King Charles Spaniels Monty and Rowley
Staff brought in Jan’s two Cavalier King Charles Spaniels Monty and Rowley

He continued: “All the staff here have been wonderful. Jan has been so well cared for, nothing is too much trouble even down to the chef coming every day to see what he can tempt Jan to eat.

“Nothing is too much trouble, including arranging for a horse to visit!”

Before her illness Jan, who has lived in Chester all of her life, could be seen dressed as Chester’s Tudor Lady delivering tours of the city where she has been a Blue Badge Tour Guide for 37 years.

Jan said: “I just can’t believe what the staff here at the hospice have done for me. Until a few weeks ago I was still riding Bob every day and he is such an important part of my life, and I have missed him so much.

“I knew that arranging for my dogs to visit was possible as we had a neighbour who was a patient at the hospice a few years ago and we were allowed to bring the dogs to visit her, but I just didn’t expect that they would ever be able to give me the chance to see Bob one more time.”

Horse Bob came to visit through the patio door
Horse Bob came to visit through the patio door

Louise Saville King, deputy ward manager at the hospice, said: “It was obvious when Jan first came to us that she is passionate about her animals and that horses have played a large part in her life for many years.

“The ethos of hospice care is not just about caring for the clinical needs of our patients but also looking after their emotional and spiritual needs as well.

“It’s about making a difference to our patients and their families in whatever way we can.

“We know that sometimes people are scared at the thought of coming to the hospice, but it’s a positive place where people are supported and well cared for.

“The work of the hospice really does make a difference to people’s lives.“

Complete Article HERE!

How to Grieve the Death of a Pet

How best to cope with the loss of a furry friend

Chances are good that you live with a furry friend. According to the 2021-2022 APPA National Pet Owners Survey, 90.5 million homes — that’s 70% of U.S. households — own a pet.

Although people choose to have a pet for many reasons, the important role these animals play in our daily lives can’t be overstated, says clinical health psychologist Amy Sullivan, PsyD.

“Many times we adopt pets because we’re struggling ourselves, and we need that companionship. During the pandemic, or during other difficult times in your life, you often hear, ‘This pet got me through such a difficult part of life.’ That emotional connection to your pet is so vital.”

Dealing With the Loss of a Pet: Why Is It So Painful?

Given how much comfort pets bring, it’s understandable that losing them can be emotionally devastating. “Our animals become a part of our family,” says Dr. Sullivan. “They provide unconditional love and support, which is something that people don’t get from a lot of different places.”

As an example, she cites how excited pets often are to see you when you return home after being away. “It doesn’t matter if you’ve been gone for two hours or two days, the way that they greet you is just so beautiful,” says Dr. Sullivan. “It’s like you’re their world.”

Losing this unconditional love is understandably very difficult. “As humans, we need to feel that love and connection and to know that something views you in such a special way,” she adds. “That’s why it becomes so painful when we lose our animals.”

Grieving a pet after euthanasia

Understandably, it’s perfectly normal that grieving the loss of a pet from euthanasia can be much more difficult. “We want to see a pet death occur naturally, when they are at a ripe old age,” she says. “But part of the problem is their lives are so short. You never get enough time with your pet.”

Euthanasia is often the right decision for your pet, so they’re no longer hurting. But knowing a health decision you made led to their death can add extra layers of guilt and exacerbate your pain and grief.

“You certainly don’t want to see your pet suffer,” says Dr. Sullivan. “But there is that grief that’s associated with that guilt, and questioning yourself: ‘Am I making the right decision?’ That’s why it’s important to make that decision with your trusted medical professionals and other family members.”

Is grieving a lost pet different than grieving a human?

Sullivan stresses that grief isn’t “one size fits all” after a death. In other words, it’s impossible to compare your reaction to losing a cherished pet versus losing a loved one. “For some people, grieving a pet is more difficult,” she says. “For other people, grieving a human is more difficult. For some people, both are very, very difficult. But I don’t think a pet death causes less grief than a human one.”

However, because a pet is such a treasured member of your family, it’s not out of the ordinary to feel a death very deeply. “It depends on your relationship with a pet,” adds Dr. Sullivan. “Pets are a part of your life. They provide that additional support and love, and they’ve gotten you through some very difficult times. And so in some cases, grieving a pet is even more difficult than grieving a human being.”

How to Grieve a Pet

As with grieving a loved one, dealing with the loss of a pet takes time. Here’s what to keep in mind:

Realize your grief is valid

Dr. Sullivan says being an emotional wreck after a pet dies is completely OK. “There have been times when patients have been in my office absolutely more devastated by the loss of their pet, or by having to make the decision to euthanize a pet, than about anything I’ve ever seen them upset about,” she notes.

This extreme reaction to loss goes back to the idea that pets are part of our family. “They may be the most important thing to a person, honestly,” says Dr. Sullivan. “We have to have to normalize that this grief is real.”

Recognize that grief looks different for everyone

Experts often explain grief using the Kübler-Ross model, which outlines five different phases you go through: denial, anger, bargaining, depression, and acceptance. (Dr. Sullivan prefers to use “adaptation” over acceptance: “Acceptance is more passive, whereas becoming more adaptive is more active. It lets us ask, ‘What can we still do?’”)

Still, your journey through these phases can be different, even from one day to the next. “There’s no consistent way that you approach grief, denial, anger, bargaining, or any of those phases,” Dr. Sullivan explains. “Each person moves through these stages at their own unique time and in their own unique way, and they can go back and forth. It’s not a linear phase.”

“What’s important is that we recognize that people are experiencing these feelings, and we support them and guide them in each of these different domains of emotion,” she adds.

Create physical memorials

Physical memorials are one of the easiest ways to remember a pet. When Dr. Sullivan’s family lost a beloved Yorkshire terrier, Reiley, the vet sent them sympathy cards and gave them a printout of the dog’s paw and muzzle prints alongside a poem called The Rainbow Bridge.

Dr. Sullivan also put together a memorial photo book, and she still keeps the terrier’s collar and tags hung in a special place of honor in her house. Her family also created a special place in their backyard near where he’s buried. “We have a space set up with a special flower that blooms year after year for him, and it has a little statue with his name on it, so we can go back there and look at it,” she says.

Join a support group

Some people prefer to grieve privately, out of the public eye. However, for those who find solace in talking to other people, Dr. Sullivan says joining a support group can be helpful. These can be social media-based spaces for grieving or even in-person groups.

Make sure your entire family is supported

Losing a fuzzy buddy affects everybody in your household. Dr. Sullivan says you might have to comfort your other pets, as they are also feeling grief. “If you have multiple pets in the household, they’re going to grieve the loss of their companion.”

Kids might also need extra support, as losing a pet might be their first personal experience with death. “This may be their first opportunity to really lose somebody,” says Dr. Sullivan. “We have to make sure that we help support them in situations of grief, death and dying. It’s very new to them, and it can be very scary to them.”

Above all, keep in mind that coping with the loss of a pet takes time. You may not get another pet right away — and, even when you do welcome another pet into your family, things will still take an adjustment period. “In the end, you realize your pet wants you to be happy,” says Dr. Sullivan. “I don’t think you ever move on — you move forward, and the relationship you have with each pet is different. No one’s going to replace that.”

Complete Article HERE!

Some primates carry their dead infants for months as a form of grieving

By Tibi Puiu

Scientists have documented hundreds of instances in which ape or monkey mothers continue to groom and hold on to the corpses of their infants for days, weeks, and in some exceptional cases, even months after the babies passed away. In a new study, scientists have analyzed more than 500 such documented cases among 50 primate species, finding that the behavior is more widespread than previously believed. The distressing behavior is seen as an expression of grief.

“Our study indicates that primates may be able to learn about death in similar ways to humans: it might take experience to understand that death results in a long-lasting ‘cessation of function’, which is one of the concepts of death that humans have. What we don’t know, and maybe will never know, is whether primates can understand that death is universal, that all animals – including themselves – will die,” Dr. Alecia Carter, a researcher at University College London, said in a statement.

A striking coping behavior

The practice of carrying around dead infants didn’t have a clear explanation until now, considering it is costly and provides no apparent benefit to the parent. However, the widespread nature of the practice across time and many species motivated primatologists at the University College London in the UK to embark on a study.

The team analyzed reports dating from as far back as 1915 to 2020, compiling 509 cases of infant corpse carrying among 50 primate and monkey species, 80% of which engaged in this practice regularly.

Our closest relatives, the great apes — bonobos, eastern and western gorillas, chimpanzees, and orangutans — had the highest frequency of cases, along with Old World Monkeys. Both of these groups carried their dead infants the longest.

For instance, in their study, the researchers describe a case recorded in 2017 involving a female macaque in an Italian wildlife park who carried her dead infant for four weeks, before eventually cannibalizing the mummified corpse. One of the most extreme cases of this activity was observed in 2003, when the corpses of two infant chimpanzees were carried around by their mothers for months.

Although we can never be sure what are the motivations behind this behavior, there are some patterns that point towards a form of stress management. Some of the primate mothers would shriek in alarm when the corpses of their babies were taken away from them, which suggests carrying the corpse is a form of coping strategy to alleviate the great stress caused by infant separation.

When live primate babies are separated from their parents, both the infant and the mother show signs of significant anxiety. A 2011 study showed that rhesus monkey babies do not fully recover from the stress of being separated from their mothers at birth, leaving them prone to a life of anxiety, poor social skills, and depression.

The researchers in the UK found that the younger the infant, the more likely it was for the mother to carry the babies for longer, perhaps because the bond between them was the strongest then.

The age of the mothers was also an important factor. Young mothers were more likely to carry their dead babies. The researchers write that older mothers may be experienced enough to recognize that their infants are gone and may be more psychologically equipped to deal with the broken bond with the baby.

Traumatic deaths, such as infanticides or accidents, were less likely to result in corpse carrying compared to deaths caused by non-traumatic events, such as illness. A death resulting from an illness may not make it immediately clear to the mother that her baby is lifeless.

“We show that mothers that were more strongly bonded to their infant at death carry the corpse for longer, with emotions possibly playing an important role. However, our study also shows that, through experience with death and external cues, primate mothers may gain better awareness of death and therefore ‘decide’ not to carry their dead infant with them, even if they may still experience loss-related emotions,”  said co-author Elisa Fernández Fueyo of University College London’s Department of Anthropology.

Clues about the origin of human mortuary practices

The findings have important implications not only for advancing our understanding of how non-human primates grieve, but also how we’ve come to deal with death among our own species. Human social bonds are very similar to those of chimpanzees and bonobos due to our shared evolutionary history. Human mortuary practices and grief may have their origins in these shared social bonds.

“The thanatological behaviours that we see in non-human primates today may have been present in early human species as well – and they may have transformed into the different rituals and practices during human evolution,” said Elisa Fernández Fueyo.

“However, we need more data to enable us to further develop our understanding of this, and of how much primate behaviours relating to death may not only be explained by bonds but also by the associated emotions and, thus, resemble human grief.”

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