On senior cats, black cats, and the quiet mathematics of who gets chosen
By Emily Carter — Contributing Writer
September 12, 2026
Every shelter has one.
She is in the third pen from the end. She has been there long enough that the volunteers know her preferences — which blanket, which corner, how long she needs before she'll accept a hand. New staff are told about her during their first week, in the slightly apologetic tone people use for a fixture.
She is eleven. She is black. She has a managed thyroid condition that costs about the same per month as a streaming subscription. She is, by every account of everyone who has spent time with her, an exceptional cat.
Two hundred people have walked past her pen this year.
I. What we mean when we say "adoptable"
Shelters use the word constantly, and it carries more weight than it appears to.
An adoptable cat, in practice, is a cat somebody will choose. Not necessarily a cat who would make the best companion. Those categories overlap less neatly than we like to imagine.
Adoptability is partly about circumstance, partly about presentation, and partly about the preferences people bring with them when they walk through the door.
Young cats are easy to picture in a future.
People imagine years ahead. They imagine growing together. They imagine fewer medical appointments and fewer difficult goodbyes.
Older cats ask for a different kind of decision.
The reasoning, when people give it, is often simple:
I don't want to get attached to something that won't be around long.
It is an understandable answer.
It also creates a strange contradiction.
The animals with the fewest years left can end up spending the greatest proportion of those years waiting for someone to choose them.
II. The colour problem
Then there is the black cat.
Anyone who has tried to photograph one indoors already understands part of the problem.
In the wrong light, the face disappears.
The eyes vanish into the coat.
A perfectly expressive animal becomes a dark shape against a blanket.
And today, the photograph often comes before the meeting.
Someone scrolls through a shelter page at home and mentally creates a shortlist before ever stepping through the door.
One photograph catches their attention.
Another does not.
The difference can be nothing more profound than a window, a phone camera and the direction the cat happened to be facing.
The tabby beside her has stripes, contrast and a clearly visible expression.
The black cat becomes a silhouette.
Nobody deliberately decided that she deserved less attention.
That is what makes these small disadvantages so difficult to notice.
They accumulate without anyone intending them to.
III. The medical note
Then there is the cat with something written beside her name.
Hyperthyroid.
Kidney diet.
Three legs.
Needs a quiet home.
Needs to be the only cat.
Needs medication.
A few words can change the way somebody sees an animal before they have even met her.
Suddenly the person is no longer imagining the cat asleep at the end of the sofa.
They are imagining appointments, medication and responsibility.
Sometimes that concern is entirely reasonable.
But sometimes the words sound larger than the reality.
A cat that needs a daily tablet is still, for most of the day, simply a cat.
A cat eating a particular food still spends the afternoon sleeping in a patch of sunlight.
A cat missing a leg is not spending her life thinking about the leg she does not have.
Medical needs matter.
They should be understood honestly.
But they do not necessarily define the animal living with them.
IV. What waiting changes
Waiting is not always neutral.
A cat may arrive frightened but curious.
Weeks pass.
The environment becomes familiar, but it does not become home.
The sounds repeat.
Doors open and close.
People stop.
People leave.
The cat who once came forward may eventually remain at the back.
To someone visiting for the first time, that withdrawal can look like personality.
Perhaps she is unfriendly.
Perhaps she does not like people.
Perhaps another cat would be easier.
But the animal being judged after months of waiting may not behave anything like the animal who eventually sleeps beside someone every night.
That creates an unfortunate loop.
The easier a cat is to overlook, the longer she waits.
The longer she waits, the easier she can become to overlook.
Meanwhile, the friendly kitten two pens away has already gone home.
That is not a criticism of the family who chose the kitten.
They gave an animal a home.
It is simply the arithmetic of attention.
Some cats receive much more of it than others.
V. Where the difficult cases go
There are people whose entire involvement with cats begins where everybody else's hesitation begins.
The old one.
The frightened one.
The cat with the medication.
The cat who cannot live with other animals.
The one who has been returned.
The one nobody has asked about lately.
Small rescues and foster homes often become places where those animals get another chance to be seen differently.
A pen tells you one version of a cat.
A home can tell you another.
A cat who remains motionless in a shelter may spend an evening following a foster carer between rooms.
A cat described as shy may simply need three weeks in which nobody expects anything from her.
A cat who seemed invisible among fifty others suddenly becomes impossible to ignore when she is the only one asleep on your sofa.
This is one reason fostering matters.
It does more than create physical space.
It gives an animal a different setting in which to become herself.
VI. The thing about older cats
There is something particularly appealing about meeting a cat whose personality has already arrived.
With a kitten, much of the future is still unknown.
With an older cat, there is less mystery.
She already knows what she likes.
Perhaps she wants the chair beside the window.
Perhaps she dislikes closed doors.
Perhaps she expects breakfast with unreasonable punctuality.
Perhaps she wants affection exactly twice a day and considers anything more excessive.
There is a comfort in that certainty.
Older cats rarely need to become characters.
They already are characters.
And while adopting one may mean accepting that the time together could be shorter, shorter does not mean smaller.
A year can contain hundreds of ordinary mornings.
Thousands of small routines.
A particular sound at the food cupboard.
A place on the bed.
A habit of appearing whenever the kettle boils.
Animals do not measure companionship in projected decades.
People do.
VII. What actually helps
Search backwards. Instead of beginning with the newest arrivals, look at the animals who have been waiting.
Ask the staff who gets overlooked. The people spending every day with the cats often know exactly which one receives the least attention.
Meet the black cat in person. A photograph is a very poor substitute for an animal.
Ask what the medical note actually means. Do not assume. Find out what the routine involves and decide from the reality rather than the label.
Consider an older animal. You may be choosing fewer years, but you are not choosing less companionship.
Foster if adoption is not possible. Sometimes giving a cat a quieter place to wait is enough to show somebody else who she really is.
None of these things requires rescuing every cat.
Nobody can.
It only requires looking slightly differently at the one in front of you.
VIII. About us
CarlSlides makes cat slippers.
That is a small thing compared with the work done every day by people caring for animals, and we are comfortable with it being a small thing.
We like cats.
We like the strange routines people build around them.
We like the photographs, the stories, the ridiculous sleeping positions and the way an animal weighing ten pounds can quietly reorganise an entire household.
That affection is part of why we keep writing about them.
CarlSlides is meant to be something lighthearted — a comfortable pair of slippers shaped around an animal people love.
But loving the idea of cats is easy.
Remembering to notice the real ones takes a little more attention.
So if there is one thing worth carrying away from this:
The next time you visit a shelter, do not only look at the cat everybody else is looking at.
Walk a little farther down the row.
There may be one near the end who has been waiting for somebody to stop.
And this time, somebody might.