Some of the Signs that May Indicate Pandora Syndrome

The term “Pandora syndrome” was coined by Tony Buffington of Ohio State University to describe cats with chronic clinical symptoms suffering from health issues involving multiple organ systems. Buffington initially studied a group of 200 cats that had “incurable” urinary tract symptoms (bloody urine, difficulty urinating, urinating outside the box, and urinating small amounts). These cats had other health issues in addition to the urinary tract disease.  Curiously enough, the cats’ symptoms resolved after living in an enriched environment (Reference 1).

Early studies linked the urinary symptoms to diets containing too much magnesium, causing formation of urinary stones. However, dietary changes did not resolve the cats’ urinary issues and they continued to suffer from bloody urine, difficulty urinating, urinating outside the box, and urinating small amounts, frequently in the absence of stones (Reference 1).

diagnosing Pandora Syndrome in cats


What “Pandora Cats” have in common (Reference 2):

  • history of traumatic experiences such as abandonment, orphaning, infection
  • having more than one disease at once
  • clinical symptoms that wax and wane in response to changes in the environment

More About Pandora syndrome in cats


Genetic makeup and traumatic events are thought to contribute to Pandora syndrome in cats. Our genomes (cats and humans) contains the DNA that makes us unique. DNA is made up of 4 building blocks that can be assembled in different orders. The sequence of the DNA building blocks in a gene provides the code for a particular trait such as eye or hair color (Reference 3).

However, there is more to growth and development than just genes that code for a particular trait. The science of epigenetics studies modifications to our DNA that don’t change the order of the DNA building blocks. The epigenome refers to chemical compounds that are attached to your DNA. Exposure to pollutants, what you eat, and stress are some things that can result in certain molecules attaching to your DNA and turning particular genes on or off. This is why genetically identical twins may have different skills, health, or behavior (Reference 3).

The epigenome is reset when the genome is passed on from parents to their offspring at conception. Maternal stress during pregnancy, traumatic events such as abandonment, orphaning, and infection can subsequently affect the epigenome. While many cats recover from these things, others may develop chronic illnesses or behavioral abnormalities (Reference 2).

Pandora cats are inherently “sensitive” cats who have difficulty coping with challenges presented by their environment.  They have a heightened stress response that increases the likelihood of them becoming ill.

Why the name “Pandora” syndrome?
Pandora is a figure from Greek mythology. She was a human woman made by the gods from clay.  She was endowed with many attributes, such as beauty, charm, cleverness, and curiosity. Before sending her to earth, the gods gave her a box, that she was told NEVER to open. Pandora’s curiosity got the best of her one day and she opened the box, releasing evils to plague mankind – disease, violence, greed, old age, death… However, all was not lost. Hope was also in the box to help people survive and cope with the evils in the world.

Like Pandora’s box, “Pandora cats” have multiple problems (“evils”).

diagnosing pandora syndrome in cats


A diagnosis of Pandora Syndrome is a diagnosis of exclusion – the symptoms may respond to medical therapies but then recur. Diagnostic procedures do not reveal a root cause. Diagnosis requires an extensive review of the cat’s life history, medical history and home environment. Some sample questions are below. (A more complete history form can be found in the supplementary materials of Reference 2).

Life History

  • where did the cat come from? from a shelter? was he/she a stray? an orphan?
  • are other cats/pets in the house?
  • how many people in the house?
  • indoor only? outdoor access?
  • is your cat fearful? friendly?

Medical History

  • vomiting? diarrhea? coughing? sneezing?
  • using litter box?
  • history of medical problems- e.g. allergies, heart problems?

Environmental Resources

  • safe and secure resting places?
  • multiple, separated litter boxes, feeding stations, water bowls?
  • can the cat interact with people and other pets on his/her own terms?

treating pandora syndrome in cats


Pandora syndrome is treated with medical therapies and MEMO (multimodal environmental modification).   MEMO aims to reduce the cat’s perception of threat and increase his/her perception of control of his/her environment. There is no cure for Pandora syndrome but medical therapies and MEMO can reduce the cat’s clinical signs and increase the time between episodes of symptoms (Reference 1).

The goal of MEMO is to create an OPTIMAL environment for the individual cat.  This will be the subject of the next post.

references

  1. C.A. Buffington DVM, PhD, DACVN.  Pandora Syndrome in Cats: Diagnosis and Treatment; Today’s Veterinary Practice. August 10, 2018, Issue: September/October 2018. viewed on 1/06/24 https://todaysveterinarypractice.com/urology-renal-medicine/pandora-syndrome-in-cats/
  2. Tony Buffington CA, Westropp JL, Chew DJ. From FUS to Pandora syndrome: Where are we, how did we get here, and where to now? Journal of Feline Medicine and Surgery. 2014;16(5):385-394. doi:10.1177/1098612X14530212
  3. National Human Genome Research Institute; Epigenomics fact sheet 8/16/20. Viewed on 1/6/24. https://www.genome.gov/about-genomics/fact-sheets/Epigenomics-Fact-Sheet.

 

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Cats staring
The direct stare is not a friendly behavior.

It is increasingly common for people to own more than one cat. With more than one cat in the home, conflict between cats of the same household is also increasing.

managing aggression in the multi-cat home


It can be challenging to identify aggressive behavior. Cats play roughly and what looks like play might be a fight in progress. Subtle signs like staring and tail twitching are hard to recognize from across the room – overt behaviors such as chasing, wrestling and vocalizing are more likely to catch our eye and ear and alert us to trouble. [Reference 1]

Things to keep an eye/ear out for:

aggression


  • vocalizing: growling, hissing, long drawn out meowing
  • chasing where one cat is the “chaser”
  • offensive postures: stiffened legs, stiff tail
  • defensive postures: crouching, tucked head  [References 1, 2]

play


  • Frequent and long-lasting wrestling/chasing
  • You may hear occasional short, soft meows or chirrups [Reference 2]
  • Reciprocity – cats take turns being on top or chasing

things in-between


There are interactions that combine both play and aggression but do not result in a fight [Reference 1].

  • One cat wants to play and the other does not, responding with a swat and hiss to end the play sequence.
  • Cats of different social groups may need to pass each other. There may be some hissing but body postures are not stiff nor crouching.

interventions – Managing Aggression in the multi-cat home


When you hear yowling/hissing/growling or see stiff or crouching postures, it is time to investigate. Intervention may just consist of opening a door wider so that both cats can pass through. If things are a bit more serious, separate the participants using noise or a barrier. See Managing the Indoor Cat Fight

It is important to identify the social groups in the house.  A few aggressive interactions between cats who sleep snuggled together, groom each other and share resources most likely will not require intervention [Reference 1].

Gus and Marley tolerate each other with the occasional spat.

 

PLAY can become AGGRESSION


  • A cat becomes too exuberant and begins to scratch and bite harder.
  • Reciprocity stops – cats are no longer taking turns.
  • Hissing, growling increases as the other cat tries to end the play sequence.

 

 

Decreasing aggressive play towards other cats

By reducing the desire to play, cats will play less, decreasing the chance that aggressive play happens [Reference 2].

  • Provide play-time for the whole group at predictable times: scatter toys around the room for the group to interact with; play with the aggressive/energetic cats with a wand toy or other interactive toys.
  • These more active cats can also benefit from play time away from the other cats in a separate room [Reference 2].

non-play aggression


Play aggression starts with positive, friendly emotions, whereas non-play aggression arises from fear, anxiety, and frustration [Reference 2].

Common scenarios include cats blocking other cats from accessing resources, or trapping another cat in a place that has no escape route. And there are those “bully” cats that “pick on” timid or shy cats, who respond with crouching down and scooting away.

  • Have plenty of resources spread out through the house (a cat can’t block two places at once).
  • Have multiple, separated play/resting/observation areas.
  • Monitor “bottlenecks”: provide places for cats to avoid each other, e.g. a high cat tree near a doorway, offering an escape from another cat passing through.
  • Enrich the “bully” cat: give him time away from cats not of his social group with access to food puzzles and novel toys.
  • Enrich the “victim”cat: give him or her time away from the bully and his buddies.
  • Put a collar with a bell on the “bully” so that other cats know he or she is coming.  [Reference 2]

redirected aggression


Something happens that frustrates or frightens a cat, and the cat strikes out at whomever is closest. The cat cannot strike out at the cause of the arousal – it may be out of reach or too risky to confront.

A frequent scenario is a strange cat appearing at a window. The cat indoors cannot engage the stranger and redirects her frustration and anger at another cat nearby. Other triggers include high-pitched or loud noises, unusual odors, or visitors in the house.

Dealing With Redirected Aggression [Reference 2]

  • Separate the cats and reintroduce gradually.
  • Desensitize the aggressor cat to whatever stimulated the aggression: if it was a noise – play this sound (or something like it) when the cat is around. Start with a low volume and gradually increase to full volume while offering high value treats.
  • Visitors in the house: train the cat to go to a safe place when visitors come in.
  • For more information, see Redirected Aggression in Your Cat – When It Becomes a Problem.

other interventions – managing aggression in the multi-cat home


  • Medication may be helpful for very timid cats, highly aggressive cats, or to manage redirected aggression where the cat will continue to be exposed to the trigger [Reference 2].  See Dealing with Anxiety and Misbehavior in Your Cat.
  • If conflict continues, you may need to set up a time-sharing plan and have different social groups use critical areas in shifts. See How Cats Get Along – Timesharing.
  • Rehoming the aggressor cat with his social group or the victim cat with her social group may be viable alternatives [Reference 2].

Managing aggression in the multi-cat home requires careful observation of how the resident cats interact with each other.  Knowledge of the social groups in the home can help in deciding whether intervention is needed.  The cat owner must also be willing to respond to problems by adapting the environment, providing opportunities for cognitive enrichment, such as group and individual play time, and separating and reintroducing cats, when necessary. 

Managing aggression in the multi-cat home is essential for the health and happiness of the feline and human occupants.

references

  1. Gajdoš-Kmecová, N., Peťková, B., Kottferová, J. et al. An ethological analysis of close-contact inter-cat interactions determining if cats are playing, fighting, or something in between. Sci Rep 13, 92 (2023). https://doi.org/10.1038/s41598-022-26121-1
  2. Ramos D. Common feline problem behaviors: Aggression in multi-cat households. Journal of Feline Medicine and Surgery. 2019;21(3):221-233. doi:10.1177/1098612X19831204

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Gus greets Miso

Social Groups of cats in the multi-cat home


This post was originally published 8/29/20. This newer version has been edited to incorporate new material and references.

If there is plenty of food around, free-roaming cats tend to form groups called colonies. The core of the cat colony are the females, typically a mother, her sisters, and her daughters. These females share the care of the kittens – they nurse each others’ kittens and even help each other give birth.

Male kittens are driven off by their mothers at maturity to avoid inbreeding. They can become solitary hunters like their wildcat ancestors or become attached to an unrelated colony if accepted by the females.

Smaller social groups of cats often form within the larger social group of the cat colony.   These groups of 2 or more cats typically

  • sleep snuggled together
  • groom each other
  • rub against each other
  • “play fight”.

These cats are comfortable sharing resources: food, water, litter boxes, sleeping and resting places.  Often these are cats that grew up together but that is not always the case. 

social groups of cats indoors -managing the multi-cat home


In the multi-cat home, some cats also prefer to stay together. Identifying the social groups of cats in the home can aid in allocating resources and reduce conflict among the resident cats [Reference 1].

Identifying the social groups of cats


Members of the same social group mayCat sharing a basket

  • sleep snuggled together
  • groom each
  • rub against each other
  • engage in mutual social play.

There are no hard and fast rules to affiliation: some cats will not snuggle together, but will groom each other and play together.

A Multi-Cat Household and its Social Groups


There are 3 social groups in this 4 cat household.

Social Group 1

Athena forms her own social group.  She is a 15 year old spayed female. She recognizes her housemates but prefers to spend time by herself or with her owners.

Social Group 2

Marley (14 yr neutered male) will hang out with 4 year old Zelda. They will rest together and  “share” snacks. They will occasionally “play fight”.

Social Group 3

Zelda and Gus (3 yr old neutered male) groom each other’s heads and play together occasionally.

Gus and Zelda also go on walks together with their owners.

Allocating resources in the multi-cat home to reduce conflict


One of the keys to harmony in the multi-cat home is to provide multiple resources and spread them throughout the house.  The goal is to ensure that all cats have access to litter boxes, food and water without having to compete with another cat. Here is a simple diagram showing the location of litter boxes on the second floor of a multi-story home [Reference 1].

When locating resources, watch for “bottlenecks” such hallway doors where cats may have to pass each other. Try and place litter boxes, water stations… away from these areas.

House map cat resources
A simple sketch of your house can help with locating litter boxes.

tips for managing resources in the multi-cat home


  • # litter boxes =  # social groups + 1
  • Feed cats individually and out of sight of each other.
  • Have daily play time for each cat
  • Have multiple sleeping, resting places – have secluded and elevated choices

monitoring interactions between cats to manage conflict


Once the social groups in the house are identified, it important for the cat owner to monitor how the cats are getting along and intervene, if necessary, to prevent conflict [Reference 1].

  • A cat fight can result in injuries to the fighting cats and the humans who try and manage the fight.
  • Aggression does not need to cause physical injury – psychological stress resulting from one cat guarding resources from another can result in illness and undesirable behaviors such as house-soiling.

signs of conflict – signs of play


It is important to be aware of potential conflict in the multi-cat home.  Signs of conflict not only include chasing, running away, howling and hissing, but also more subtle, seemingly harmless behaviors such as staring and blocking doorways.  To make things more confusing, chasing and running away can be play behaviors! For more information, visit “How Do Your Cats Get Along – Conflict Behaviors”.

 Cats are socially flexible and can form social groups with unrelated cats, although the strength and intensity of these social bonds can vary.  A few aggressive interactions between cats who sleep snuggled together, groom each other and share resources may not point to a deterioration in their relationship [Reference 2].  However, cats whose affiliation is weaker and whose inter-cat interactions are frequently punctuated with hissing and growling may warrant a call to your veterinarian or a cat behaviorist. 

The next post, “Managing Aggression in the Multi-Cat Home“, will look at identifying aggressive behaviors in more detail and what interventions are available to the cat owner.

references

  1. Ramos D. Common feline problem behaviors: Aggression in multi-cat households. Journal of Feline Medicine and Surgery. 2019;21(3):221-233. doi:10.1177/1098612X19831204
  2. Gajdoš-Kmecová, N., Peťková, B., Kottferová, J. et al. An ethological analysis of close-contact inter-cat interactions determining if cats are playing, fighting, or something in between. Sci Rep 13, 92 (2023). https://doi.org/10.1038/s41598-022-26121-1

 

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Cats have many more odor sensitive cells in their noses than we humans do. They also have a vomeronasal organ (VNO) in the roofs of their mouths to process odors. Cats communicate by smell.

cats communicate by smell


This post was originally published May 2, 2021 and has been updated to reflect new content.

For a cat, odors can be associated with a particular place or individual animal, identifying that place or animal.

Another way cats communicate by smell is through semiochemicals. Odors can contain semiochemicals, molecules that carry “messages” from one organism to another. The organism receiving the “message” responds with a change in physiology or behavior. For example, there are insect traps that use hormones that simulate the type of scent produced by the female insect. Male insects are lured into the traps, preventing them from mating.

Semiochemicals that carry “messages” between members of the same species are called pheromones. For cats, pheromones are used to mark territorial boundaries, advertise that a cat is ready to mate, or send greetings. Lactating mother cats also produce a blend of “appeasing” pheromones,  that make kittens feel safe and reassured when their mothers are nearby.

Cats release pheromones from glands in their bodies. These glands can be found in…

  • the lips
  • the cheeks
  • the pads of the feet
  • at the base of the tail
  • the area surrounding the teats in females.
Glands producing pheromones
Locations of the glands that produce pheromones in the cat.

 

Cats communicate by smell -pheromones


When your cat rubs his cheeks against furniture or that corner wall, he deposits pheromones there. Researchers have separated secretions from the sebaceous glands in your cat’s face into 5 pheromone-containing fractions. The “F3 fraction” is thought to be a friendly greeting, marking the area as safe.

Cat Appeasing Pheromone (CAP) is released when the mother cat nurses her kittens. It is a message to the kittens that they are safe and secure – after all, mom is there!

Cats also release pheromones when they scratch, marking territory with another pheromone, FIS or feline interdigital semiochemical. The cat making the scratch marks also leaves behind his own individual scent, giving the next cat who comes along an idea of who left the pheromone message. As time goes on, the pheromones/scents decay. This change in pheromones/scents  notifies the incoming cat when the previous cat was there.

using pheromones to communicate with your cat


It is not surprising that synthetic versions of the F3 fraction of the facial pheromones and CAP have been made with the intention of calming cats and reducing conflict in multi-cat households. These products are available as diffusers or sprays.

Facial Pheromones F3 Fraction


  • Diffuser: place in areas you want your cat to identify as safe and secure, for example, sleeping areas.  You may not need to use the diffusers all the time – after all, your cat or cats are most likely marking these areas themselves. However, the diffuser could give an added boost in times of increased stress, such as home renovation.
  • F3 spray can help with  urine marking. Clean the marked spots with enzyme cleaners (eg. Tide), followed by rubbing alcohol. When dry, spray the spot with one of the F3 sprays.
  • The F3 spray is also useful to discourage scratching. Try spraying the area you DON’T want scratched with the F3 spray and place a scratching post nearby.
  • BSerene spray features the F3 fraction combined with catnip oil to promote calm behavior.

Cat Appeasing Pheromone


  • Diffuser
  • This product can be useful in multi-cat households when introducing a new cat. Place the diffuser in the common areas where all the cats will congregate.
  • You may not need to use this diffuser all the time but it can give a boost during times of stress, for example, when one cat returns from a veterinary visit.
  • The BSerene brand offers a diffuser that contains both F3 and CAP.

A product called Feliscratch contained a synthetic version of FIS. Feliscratch was applied to the scratching post to encourage cats to use it.  This product has recently been pulled off the market due to flagging sales.

No Feliscratch?

  • Make scratchers appealing with treats or catnip
  • If your cat will knead a small fleece blanket, it is possible that this blanket may have FIS deposited on it.
  • Placing the blanket near a new scratching post may attract your cat to the scratcher.

Feliway Optimum – one size fits all?

Feliway Optimum is the result of computer simulation and features a single product designed to address urine spraying, scratching, fear, and inter-cat conflict. It is a proprietary blend of specific pheromones that bind to receptors in the VNO in cats. It comes in a diffuser (Reference 1).

 

How effective are pheromones in communicating messages to cats?


The idea of managing cat behavior using pheromones is appealing. There are no pills to give and you can treat all your cats at once. However, studies aimed at determining whether these products work or not have mixed results (Reference 2).

How receptive an individual cat is to pheromone signals may depend upon her experience (Reference 2).  A free-roaming cat or cat who is a member of a multi-cat household will use pheromone signals more than an indoor cat who lives alone.  A kitten bottle-fed by humans will not be exposed to CAP like kittens nursed by a feline mother.

In my own experience, cats with a feral background respond more strongly to the pheromone products than cats raised in a human household.

You can think of pheromones as those signs in the library asking you to KEEP QUIET or the NO SMOKING signs – there is always someone who is talking or smoking. Compliance is never 100%.

Since cats communicate by smell, synthetic cat pheromones allow us to add some basic messages when we are trying to change a cat’s behavior. Do these products work? The efficacy of these products may depend on the experience of the individual cat.  Consequently, pheromones are best used in conjunction with other behavior modifications.

references

  1. De Jaeger, Xavier & Meppiel, Laurianne & Endersby, Sarah & Sparkes, Andrew. (2021). An Initial Open-Label Study of a Novel Pheromone Complex for Use in Cats. Open Journal of Veterinary Medicine. 11. 105-116. 10.4236/ojvm.2020.113006.
  2. Zhang Lingna, Bian Zhaowei, Liu Qingshen, Deng Baichuan. Dealing With Stress in Cats: What Is New About the Olfactory Strategy?. Frontiersin.org/articles/10.3389/fvets.2022.928943, DOI=10.3389/fvets.2022.928943 

 

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Introducing a new cat to an established group of resident cats can be challenging. Most experts recommend a slow, gradual introduction, similar to how wild cat colonies accept new members.

introducing a new cat


Wild cats recognize members of their own colony. Unfamiliar cats will be greeted with aggression if they try to approach and enter the group. This is not to say that non-members don’t join the colony from time to time. If these “outsiders” are persistent in their attempts to join the group, they may be accepted after a gradual process that involves many interactions (Reference 1).

I am in the process of introducing a new cat to my household. The introduction process is still ongoing but here is my progress so far.

Miso is 2 year old male domestic shorthair who had been frequenting the porch where my veterinarian employer leaves food out for the community cats. Miso behaved more like a stray cat and tried to get into the house. So, he was coaxed into a carrier, neutered and had dental treatment at the veterinary clinic where I work.

Miso is friendly toward humans and other cats. Although he is quite a bit younger than my cats, I thought it was worth a try to bring him into my group.

At the time of the introduction, there were 4 cats in my household and two social groups:

  1. Athena, aged 18 years, forms her own social group. She tolerates the other cats but does not snuggle, groom or otherwise interact with them.
  2. Marley, a 17 year old neutered male, 7 year old Gus, and 7 year old Zelda form the second social group. Zelda and Marley will snuggle together particularly when it is cold. Gus and Zelda allogroom; Gus and Zelda also groom Marley.

Getting Ready

 

Introducing a new cat starts with scent exchange. A few weeks before I brought Miso home, I brought home a blanket he slept on and left it in the kitchen area. All four cats carefully smelled it and there was some hissing but that waned over a week.

I made a barricade of closet shelving to close off the downstairs from my resident cats and set up a room downstairs for Miso to stay in with a litter box, scratching posts and food station.

 

Week 1

Miso is calm and confident and asks to go out of his room. He goes out into the catio downstairs. We set up a system of time-sharing the catio, allowing Zelda and Athena to occupy it in the morning while Miso is closed in his room. Miso has the catio in the afternoon.  At night, Miso is closed in his room.

Miso chooses to eat at the top of the stairs next to the barricade. The other cats are fed out of sight in the kitchen.

At the end of the week, I apply a mousse shampoo to Miso and wash his bedding, thinking that he might smell like the vet clinic.  I also put a multi-cat pheromone diffuser downstairs and 4 more on the upstairs floor.

Week 2 – Zelda gets sick

Zelda has diarrhea which I think may be due to the stress of having a new roommate.  The diarrhea  resolves with a few days of probiotics.  

The resident cats frequently hiss while passing Miso at the barricade but they now ignore him and continue on their way. We start to allow Miso upstairs while the other cats are in the catio.

At the end of the week, we allow Miso to have free run of the downstairs and not be closed in his room at night. The barricade is still up.

Week 3 – A Behavior Change for Gus

Miso was trained to harness and leash when at the vet clinic. I officially bring Miso upstairs on a leash and we have our first friendly interaction with the residents – Miso and Gus touch noses and there is no hissing.

Gus greets Miso

Miso is assigned a feeding station (a cat carrier) to eat in and is fed with the other cats. I get a little push back from Gus, who refuses to eat at his feeding station.  I offer him his food on his cat tree which he accepts.

Miso starts doing the evening food puzzle and treat toss with Zelda and Marley. Again, Gus prefers not to participate and does his food puzzles on his cat tree. The barricade is opened during the day near the end of the week.

 

Week 4 – Aggression from Athena

Athena swats Miso and we separate them temporarily, closing Athena in the bedroom. I put a broom near the door way with the water fountain so that I can herd Miso away in case he blocks Athena on her way to water.

There is still plenty of hissing going on but everyone’s body language is neutral. There are still 4 multi-cat pheromone diffusers on the upper floor.  Miso is allowed out in the catio with the other cats.  Everyone keeps their distance.

At the end of the week, Miso is allowed upstairs at night and chooses an empty carrier to sleep in.

Although the cats are sharing common areas now, the process of introducing a new cat is far from over. It will take many more months before all the cats are accustomed to the new resident and the changes in the daily routines.

Introducing a new cat into an established household is stressful for the incoming cat as well as the residents. Even with a gradual introduction, stress-induced illness, changes in routine, and displays of aggression are not uncommon. It is important to monitor the body language of all the cats, accommodate changes in behavior and be ready to separate cats if there is a scuffle.

references

  1. Crowell-Davis SL, Curtis TM, Knowles RJ. Social organization in the cat: a modern understanding. J Feline Med Surg. 2004 Feb;6(1):19-28. doi: 10.1016/j.jfms.2003.09.013. PMID: 15123163.

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A cat enjoys the scents of a summer night from his window seat.

I remember visiting the zoo as a young child. Back then, the animals’ enclosures were not the large, landscaped areas that you see today. The animals were behind iron bars with a few hides to go into, water, and maybe a tree or two. It was not uncommon to see the tigers or lions pacing repetitively back and forth along the walls of their enclosures or the giraffes continually licking the chain link fences.

These repetitive behaviors are referred to as ARB’s, abnormal repetitive behaviors. In the past few decades, zoos have found that changing captive animals’ environments to allow more natural behaviors reduces ARB’s significantly. Expressing species-specific behaviors allows an animal to control and modify its environment, ensuring survival and reproductive success. Creating a den (safe place) is an example of how an animal controls and modifies its environment (Reference 1).

Environment and cat behavior


Many cats live predominately indoor lives. Our homes are quite different than the territory of a wild cat. The indoor cat often has little opportunity to engage in typical cat behaviors such as hunting and climbing trees. It is not surprising that some domestic cats indulge in ARB’s to reduce the stress of being unable to predict and control their environment.  Overgrooming, where a cat licks or scratches her fur so much that the area becomes inflamed and bald, is one of the more common ARB’s shown by domestic cats.

Of course, a good, solid medical workup may uncover a cause for overgrooming and itchiness – perhaps kitty has a food allergy or skin infection. But it is not uncommon for some of these cases to be “idiopathic”, meaning we don’t know what the cause is.

environment and cat behavior: ARB’s


The wound on this cat’s neck comes from repeated scratching.

A study published in 2018 (Reference 2) investigated the link between the environment and cat behavior. The study followed thirteen cats who had been diagnosed with Idiopathic Ulcerative Dermatitis (IUD).  IUD presents as a crusted, non-healing ulcer on the neck, head or between the shoulders. Medical therapy including surgical excision is rarely successful. The cat scratches at the wound frequently; the wound will heal if the cat cannot scratch it, say if she wears a collar or bandage. Once the collar or bandage is removed, the cat will scratch the area again and the wound reappears. (Reference 2)

 

The research team asked the owners of the 13 cats to institute the following environmental changes:

  • Leave closets open to allow cats to use them as a hideout
  • Free access to food and water (add a fountain if the cat prefers running water)
  • Free access to a garden or balcony/window – a cat door was recommended
  • Provide access to a secure area where each cat can sleep, eat, use the litter box without competing with other cats (some cats were separated from their house mates)
  • Regularly offer new toys to the cat
  • Stop interactions initiated by owner such as carrying the cat, petting the cat. Allow the cat to initiate the interaction.

As soon as environmental changes were set up, the ARB of scratching stopped within 2 days. All cats except one healed – for this cat, the owners were not able make the environmental changes. Oral medication was given to this kitty for two months but the neck wound did not heal. The other twelve cats did not receive medication.  The research team followed these cats for two years and no relapses were noted in that time.

The environmental remedies in this study aimed to give the cat control over her environment by allowing her to exercise typical “cat” behaviors.  These are in line with the AAFP* recommendations for a healthy feline environment (Reference 3):

  • Provide a safe place <> leave closets open to allow the cats to use them as a hideout
  • Provide multiple and separated key environmental resources<>secure area for eating, sleeping and using litter box
  • Provide opportunity for play and predatory behavior <> offering new toys to the cat
  • Provide positive, consistent and predictable human–cat social interaction <> emphasize interactions initiated by the cat
  • Provide an environment that respects the cat’s sense of smell <>  access to a garden/balcony/window exposes the cat to outdoor scents and smells

Although our cats are a domestic species and have lived alongside humans for over 10,000 years, life in our homes sometimes reduces their opportunity to express behaviors typical of their wild relations. The environment and cat behavior are intertwined.  Improving the cat’s environment to encourage species-specific behaviors can reduce a cat’s stress and, in some cases, cure disease.

Note: I don’t agree with free-feeding cats even in such a situation – I think it is better to meal feed and use feeding as a positive interaction with humans. Using food puzzles and tossing kibble for the cat to hunt down allows cats opportunities to engage in foraging and hunting behaviors.

* American Association of Feline Practitioners

references

  1. Joseph P. Garner, “Stereotypies and Other Abnormal Repetitive Behaviors: Potential Impact on Validity, Reliability, and Replicability of Scientific Outcomes”, ILAR Journal, Volume 46, Issue 2, 2005, Pages 106–117, https://doi.org/10.1093/ilar.46.2.106
  2. “From Feline Idiopathic Ulcerative Dermatitis to Feline Behavioral Ulcerative Dermatitis: Grooming Repetitive Behaviors Indicators of Poor Welfare in Cats”, Titeux Emmanuelle, Gilbert Caroline, Briand Amaury, Cochet-Faivre Noëlle. Front. Vet. Sci., 16 April 2018 Sec. Veterinary Dermatology and Allergy Volume 5 – 2018 | https://doi.org/10.3389/fvets.2018.00081
  3. Ellis SLH, Rodan I, Carney HC, et al. AAFP and ISFM Feline Environmental Needs Guidelines. Journal of Feline Medicine and Surgery. 2013;15(3):219-230. doi:10.1177/1098612X13477537

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10,000 years ago, the ancestors of our domestic cats decided to take advantage of the abundance of prey near and in human settlements. During this time, the social lives of cats changed from solitary hunters to members of structured, stable groups called colonies. Today’s free-ranging cats, particularly those that live in urban environments, depend on food provided by people, in addition to hunting rodents and raiding human garbage cans.

Social lives of cats: family toms


In urban settings, food is more plentiful and colonies of cats organize themselves near feeding sites. Members of these colonies are friendly with other members but will defend their territory against intruders from other colonies.  (References 1, 2)

Male domestic cats have two mating strategies:(Reference 3)

  • Solitary toms with large home ranges will mate with females from colonies in their home range. These are typically larger cats and they do not form social bonds with the females in the colonies. This is more typical of rural areas where resources are more spread out.
  • In urban settings, males, unrelated to the females, often affiliate themselves with a colony. These “family toms” enjoy the greatest mating success within their particular colony, even if they are small. (References 2,3)

The “family toms” have been known to participate in the care and rearing of the kittens, sharing food with kittens and sometimes disrupting play of juveniles that is getting out of hand with an experienced adult paw.  They also band together with the female cats to drive off marauding tomcats that threaten the kittens. (References 1, 2, 3) Killing of kittens by tomcats is rare in the urban cat colonies (Reference 2).

In contrast, infanticide accounts for 25% of the deaths of lion cubs. When the resident males in the lion pride are displaced by a new “coalition” (group of males associated with a pride), incoming coalition kills the young cubs in the pride, so that the females go into estrus. Thus, the cubs are sired by the new incoming males. ( Reference 4).

Social lives of cats:  my Family toms


I have had two cats in my life that I believe were “family toms”.

Marty

My childhood cat was a male Siamese named Marty. He was an indoor-outdoor cat that somehow did not get neutered until he was 8 years old. He participated in his share of fights with cats and other animals. We always patched him up and let him out again.

I took him with me to college and he lived with me in dorms and apartments. One apartment we lived in had a back door that opened onto an alley. I used to let Marty out during the day. There was a population of cats that frequented the alley. One day, I was walking back from classes and noticed Marty sitting peaceably with these cats.

This social experience might explain the ease with which Marty got along with the kitten one of my roommates brought home and the young cats that I acquired when Marty was about 11 years old. I did not do much of an introduction with these kitties – they seemed to get along immediately. At one point, we lived in a old farm house; the two younger cats would accompany Marty on his expeditions to the neighbor’s house.

Gus

Gus was a free-roaming cat caught in a trap by my veterinarian employer. He is still with me and his story can be read at “Bringing a Wild Cat Indoors“. He lived briefly at the vet clinic where he was always interested in kittens, jumping onto the treatment table when you were giving the kittens vaccines.

Today, Gus watches over the three other cats in my house, looking out for wildlife when we go outdoors (supervised nowadays). One incident that I won’t soon forget involved Gus and Zelda, a female cat in the household. We were walking around our townhome when a terrier dog chased Zelda. Gus took notice and ran the dog off, chasing her away. He then escorted Zelda back to our front door. This level of protectiveness makes me think that perhaps he was a “family tom” in his previous life on the streets.

In the 10,000 years cats have lived with humans, the social lives of cats has changed. Some cats still are solitary hunters but many choose to live in structured, stable social groups. They have been able to change their behavior to take advantage of their environment. The tolerance of kittens and other cats may be one reason the domestic cat has successfully spread across much of the world (with the exception of Antartica).

An additional note…
Attitudes and care of cats has changed in the past 2-3 decades. Many cats live exclusively indoors, enjoying safer and healthier lives. Older and wiser now, I keep my current group of cats primarily indoors with daily supervised outdoor time.

references

  1. Natoli, E.; Litchfield, C.; Pontier, D. Coexistence between Humans and ‘Misunderstood’ Domestic Cats in the Anthropocene:
    Exploring Behavioural Plasticity as a Gatekeeper of Evolution. Animals 2022, 12, 1717. https://doi.org/ 10.3390/ani12131717
  2. Vitale, K.R. The Social Lives of Free-Ranging Cats. Animals 2022, 12, 126. https://doi.org/10.3390/ani12010126
  3. Crowell-Davis, S.L. (2007). Cat Behaviour: Social Organization, Communication And Development. In: Rochlitz, I. (eds) The Welfare Of Cats. Animal Welfare, vol 3. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-3227-1_1
  4. University of Minnesota, College of Biological Sciences, Lion Research Center, (https://cbs.umn.edu/lion-research-center/all-about-lions/social-behavior)

 

 

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These two cats have spotted something in the plants by the road. Cats rarely hunt together. Only one cat will get the prize!

The lion pride and the cat colony


I received an interesting comment on a post I wrote recommending feeding house cats separately. The author felt that having cats share a large bowl of food is like sharing a “large kill” and increases “pride unity”.  Lions and cats are the only members of the Felidae (cat family) that live in social groups.  The pride is the social unit of the African lion; the domestic cat will form colonies if there are sufficient resources.  How does the pride compare with the domestic cat colony? 

The lion pride


  • A typical lion pride consists of about 6 related females, their dependent offspring, and a “coalition” of 2-3 unrelated resident males.
  • Most females spend their lives in their mothers’ pride or with their sisters in a new pride.
  • Males may be a bit more mobile, spending a few years in a given pride. They will stay with their coalition throughout their lives. (Reference 1)

the cat colony


  • The core of the cat colony is the queen, her female relatives, and their offspring.
  • There may be a group of “family” males, who spend most of their time with this group of females and develop social bonds with the females.
  • Other males are solitary, with large home ranges that
    overlap the home ranges of several different female groups. These “philandering” males will mate with females from different groups and do not form social bonds with members of the colony. (Reference 2)

the lion pride and the cat colony


Both the lion pride and the cat colony aim to take advantage of resources. Lions and cats need reliable access to food, water and shelter.

Lions

Lions locate in areas where prey is likely to come by. The areas where two rivers intersect are desired locations. Water,  provided by the rivers, and  vegetation, growing near the rivers, attract the lion’s herbivorous prey.

The confluences of the rivers act like a funnel – prey animals get “trapped” in these funnels.  They are attracted by the vegetation but are leery of crossing the rivers, where predators can ambush them.

The lions that band together can protect these valuable territories from other lions and predators.  The pride that controls the territory has reliable access to food and water. (Reference 1)

Cats

Cats form colonies where there are sufficient resources, that is  food, water, and shelter.  The more food there is, the more cats can live in that area.  Large colonies exist where there is lots of food; smaller colonies are located in areas where food is not as readily available.  Where food sources are few and far between, cats adopt a solitary existence. (Reference 2)

The socialization of the domestic cat occurred as humans transitioned from being hunter-gatherers to farmers. The abundance of mice at the grain stores attracted wild cats and provided them with the resources to form colonies.

The lion pride and the cat colony –  Other advantanges


Cubs and kittens have higher survival rates in the pride/colony. The mothers as a group are more successful defending the cubs/kittens. A group of lionesses can successfuly drive off invading male lions, whereas a single lioness does not have a chance. (Reference 1). Likewise, the female cats of the cat colony can band together to challenge invading toms, dogs or coyotes. (Reference 2)

Cooperative Hunting

Lions hunt together when it is needed – for example, when taking down difficult prey such as a Cape Buffalo or zebra. Most of the time, lions hunt singly; their targets are wildebeest or warthogs. Living in a large pride does not mean that you will be well-fed. (Reference 1)

Although groups of 2-4 cats have been observed hunting squirrels and rabbits together, this is not the norm. (Reference 2).  The prey of domestic cats tend to be small and not very calorie dense. An average mouse is thought to have an energy value of about 35 kcal (Reference 3).  It is not practical to share game this small and cats typically hunt alone and dine alone.

More about food…

Male lions typically feed first at a kill, followed by the lionesses and subadult lions. The male lions will aggressively reinforce this feeding hierarchy (Reference 1). 

A study of a cat colony in Rome where humans provided bowls of food found a different feeding-order: kittens were the first to feed, followed by the females and then the males. Typically the male cats are at the top of the social ladder and the kittens at the bottom.  (Reference 4) 

Sharing a large kill appears to reinforce the social hierarchy in lions. In free-ranging cats, we see a social tolerance of kittens by both males and females when feeding in a managed colony.  Although aggressive behavior is rare (<5% of the time) in cat colonies, it is most prevalent around feeding time, but aggression is seldom directed toward kittens.

The Multi-cat Household

Feeding all the cats in the human household at one large dish is unlikely to promote unity.  Instead, competition and conflict over the food will increase as cats try to sort out who eats when and establish a feeding hierarchy.  It is best for our pet cats to dine solo.

The lion pride and the cat colony are matrilineal social groups.  Both groups locate where there is food and water. Both groups result in higher survival rates of cubs and kittens.  The lion pride is an adaptation to life on the savanna whereas the cat colony was an early step in the process of domestication, a social group formed to take advantage of food near human settlements.

Gus is the more experienced hunter and caught the lizard.

references

  1. University of Minnesota, College of Biological Sciences, Lion Research Center, (https://cbs.umn.edu/lion-research-center/all-about-lions/social-behavior)
  2.  Crowell-Davis, S.L. (2007). Cat Behaviour: Social Organization, Communication And Development. In: Rochlitz, I. (eds) The Welfare Of Cats. Animal Welfare, vol 3. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-3227-1_1
  3. DVM360, Client Handout: “How Many Calories is a Mouse?” September 17, 2014. https://www.dvm360.com/view/client-handout-how-many-calories-mouse
  4. Vitale, K.R. The Social Lives of Free-Ranging Cats. Animals 2022, 12, 126. https://doi.org/10.3390/ani12010126

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Eating is a positive experience for healthy animals. Two neurotransmitters released while eating are dopamine and serotonin. Dopamine is associated with feelings of reward and motivation; serotonin with feelings of happiness and calmness.  Thus, food is one of the ways we can induce a positive emotional state in a healthy cat.

Food and your cat’s mental health


Recent research points to two dopamine events when eating: the first when you actually eat the food and the second, when the food reaches your stomach. (Reference 1). On the other hand, rising serotonin levels act as an appetite suppressant, giving a feeling of satiety. (Reference 2)

The connection between food and your cat’s mental health provides us an opportunity to take advantage of the emotions triggered by dopamine and serotonin when eating.

Foods that calm


There are foods  that incorporate tryptophan, a precursor to serotonin. Royal Canin’s Calm diet  and Hill’s c/d Multicare Stress for cats  contain hydrolyzed milk protein and L-tryptophan to reduce your cat’s fearful behaviors in stressful situations or environments.  The caveat with these foods is that the cat must eat enough of the food to get the appropriate dose of tryptophan.

Cat using food puzzlefood and environmental enrichment


Engaging in foraging behavior can benefit cats with generalized or separation anxiety. (Reference 3)

  • Foraging can provide a cat that is vigilant, tense and easily aroused with an alternative outlet for her energy
  • Cats with separation anxiety will find foraging a rewarding activity that is not related to interacting with the owner.
  • Serotonin release during the foraging cycle promotes calm behavior.

Foraging Method 1 – Multiple Separate Feeding Stations

  • Divide your cat’s daily food ration into portions.
  • Place these in different places around the house.
  • Put some dishes up high or in boxes and closets for variety

Foraging Method 2 – Use of Food Puzzles

  • Cats have to use their paws to get the food
  • Vary in complexity and style

cats with carrier and treatsFood and your cat’s mental health: behavior modification


We can use the positive emotions triggered by eating to guide our cats’ behaviors.  The use of a stream of small food rewards will trigger dopamine release, which in turn gives the cat feelings of reward and motivation.  Food can be a powerful adjunct to some of the interventions used in veterinary behavioral care: (Reference 3)

  • counter conditioning
  • operant conditioning
  • differential reinforcement of alternate behaviors

These methods work best with foods that the individual cat finds particularly palatable and desirable.

counter conditioning and food


Counter conditioning refers to training a different response to a situation.  Consider the cat carrier that takes your cat to the vet.  Many cats have a fearful association with the carrier and the process of going into it.  The goal of counter conditioning here is to teach the cat that good things happen when he’s near the carrier.

We start with getting the cat accustomed to the carrier by just leaving it out in the room.  Once he is comfortable with the carrier left out, we can offer some treats close by the carrier and gradually work up to treats in the carrier.  Over time, the cat will associate good things with the carrier – we have used food (treats) to change the cat’s emotional state when near the carrier.

operant conditioning and food


With operant conditioning, an animal repeats behaviors that have good consequences and avoids ones that are not rewarding.  Say you ask your cat to “sit”. When he sits, you reward him with a treat (food) he likes. He will be more likely to sit next time in anticipation of getting his reward.

differential reinforcement of alternate behaviorS


Here you will be replacing an undesired behavior with one that is more appropriate to the situation.  Say your new kitten attacks and hangs on to your legs as you as come in the door or you have a “door-dashing” cat.  You could train (operant conditioning) your kitten/cat to jump up on a nearby shelf or table on cue for a  food reward when the door is opened.  (The cue can be spoken or you could jingle your keys.) The goal is to replace the attacking/door dashing behavior with sitting on the nearby piece of furniture.

Food makes our cats feel good. Neurotransmitters such as dopamine and serotonin promote positive emotions when eating.  This connection between food and your cat’s mental health provides you with opportunities to influence your cat’s behavior through diet, environment and training.

references

1. Cell Press. “Your brain rewards you twice per meal: When you eat and when food reaches your stomach.” ScienceDaily. ScienceDaily, 27 December 2018. <www.sciencedaily.com/releases/2018/12/181227111420.htm>.

2. Voigt JP, Fink H. Serotonin controlling feeding and satiety. Behav Brain Res. 2015 Jan 15;277:14-31. doi: 10.1016/j.bbr.2014.08.065. Epub 2014 Sep 16. PMID: 25217810.

3. Delgado M, Dantas LMS. Feeding Cats for Optimal Mental and Behavioral Well-Being. Vet Clin North Am Small Anim Pract. 2020 Sep;50(5):939-953. doi: 10.1016/j.cvsm.2020.05.003. Epub 2020 Jul 8. PMID: 32653265; PMCID: PMC7415653.

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Gus eyes Athena’s dinner and prepares to move in.

Solitary hunters, cats will eat or cache their prey after a successful hunt. Mother cats will bring prey back to their kittens to teach them how to hunt and what to eat but cats typically DO NOT SHARE their prey. They will growl when eating to warn other cats off.

In photos taken on the “cat islands” of Japan (called neko shima), cats line up at dishes of food put out by the island residents. There are 11 islands in Japan that have more cats than people on them. There are not enough mice for the cats to eat so residents of the islands provide food for the cats.  Feeding times appear to go smoothly on the cat islands with the occasional spat between cats. The island residents do put out food in more than one location so a cat can always move to another feeding station if he gets into a fight over food. Contrast this with our picture of a wild cat, a solitary hunter, munching his mouse in solitude.  

Our indoor cats don’t have the option of leaving if they are the target of food aggression.  Although cats may appear to get along eating next to another cat or out of the same bowl, cat behavior experts recommend that we separate cats when feeding, preferably out of sight of other cats. (Reference 1)

Why separate cats when feeding?


  • Cats with more dominant personalities will nose smaller, more timid cats out of the food bowl.
  • Victim cats may gorge and eat their food quickly, leading to “scarf and barf”.
  • Victim cats may start to lose weight.
  • House-soiling issues can start if the “bully” decides the game should extend to resources other than the food bowl.

These behaviors can be subtle. The “thief “at first just sits quietly near the “target” cat and stares at her. The target may stop eating. There may be some fisticuffs as the target tries to keep eating.  Eventually the thief just noses the target out of  the bowl, and the target cat leaves.

Strategies to separate cats when feeding


Assign each cat his own food station out of sight of the other cats. If you are meal feeding, you can fill each station with a cat’s portion and call each cat to his station as you place them around the house. Collect the feeders in 15-30 minutes as the cats finish their meals.  If you like, you can offer the meals in food puzzles, one per cat.

Locations of feeding stations


You may be able to take advantage of your cat’s preferences when deciding where to locate her feeding station. Some cats like to be up high and can be fed on their cat tree or tops of shelving units.

Closets can also make good feeding stations. Cats who like to be up high can eat on the top shelf and may just need a step ladder, storage cubes that form a ladder, or a single pole cat tree to get up there. If you just need to keep the family dog out, a gadget called a “Door Buddy” can work.

Baby gates can be used to block off doors to closets or rooms to separate cats. Although an agile, determined cat can easily scale a baby gate, this is usually pretty difficult for a dog.

feeding stations


Microchip Feeders

If you are dealing with cats on different diets or cats that eat slowly or “graze”, microchip feeders such as the SureFeed Microchip Pet Feeder are worth the cost. These feeders will only open for the cat or cats they are programmed for.

Enclosures for Feeding

A “Meow Space” is a deluxe feeding enclosure. It is ventilated and has a locking pet door which can be accessed by microchip or collar tag.  Like a microchip feeder, the “Meow Space” will only open for the cat or cats it is programmed for.

A plastic pet carrier can make a great “kitty diner”. Each cat can eat in his own carrier. If one cat finishes before another, the gate can be closed until the slower eater is done. This also helps your cat become more comfortable with his/her carrier.

Tip: Make a carrier cover that will “camouflage” the carrier, matching your color scheme and decor.

not enough room to separate cats when feeding?


Consider feeding social groups together.  Cats who belong to the same social group prefer to spend time with each other and are often willing to share resources such as food and litter boxes.

How do you know if cats are affiliated? The following behaviors can help you identify the social groups in your home.

  • Sleeping the same room
  • Allogrooming (grooming each other)
  • Sleeping touching each other
  • Touching noses

Note who does what and with whom, then diagram the social groups in your house. You may be able to feed cats in a social group in the same area. It is still recommended for each cat to have a separate bowl, be spaced apart, and to meal feed the kitties.

Separating your cat from other animals while eating allows your cat to feed in the same way as a wild cat. Feeding alone helps avoid behaviors like gorging and vomiting which can affect a cat’s physical and mental health.  Although it can be a challenge to separate cats when feeding, attention to each cat’s preferences and identifying the social groups in your home can help you develop a feeding strategy.

references

1. Sadek,T. (chair) “Feline Feeding Programs:Addressing behavioral needs to improve feline health and wellbeing” Journal of Feline Medicine and Surgery (2018) 20, 1049-1055

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