Skip to main content

Black Persian Cat

Black Persian Cat - The cat immediately below is a young male Smoke Black Ultra Persian Cat photographed by Helmi at a CFA cat show. Photograph copyright Helmi Flick. Helmi calls the photo "High Fives". I love the way Ken (the cat wrangler) gets the cats into such great action poses which are captured so well by Helmi. This cat was three months old at the time of this photograph. He was one of Helmi's favorites at the cat show that day.

Young Smoke Black Ultra Persian Cat

In a "smoke" cat coat, the bottom one eight of each hair strand is a creamy white or white. This part of the fur becomes visible when the cat moves as in the picture above. The remainder of the hair is a solid color, in this case black. This effect is not caused by the Agouti gene but an inhibitor gene (I guess it inhibits the spread of the black pigmentation throughout the hair strand).

A Black Persian Cat is, in my experience of searching for photographs of cats, quite a rare cat. Black is certainly one of the more rare coat types for a Persian cat. Yet for the humble Moggie black and variations on it, is very common. Other than pure black the Tuxedo comes to mind.

Black Doll Face Persian Cat
Black Doll Face (Traditional) Persian Cat photo copyright ~Sage~. When I say traditional Persian I mean the more normal facial conformation and not the squashed faced cat which is sometimes called an Ultra Persian. The header picture by Helmi Flick is of an Ultra Persian.

You can read about how cats become black cat by clicking on this link. One purebred cat that has to be black is the Bombay. This cat is selectively breed to be a shimmering black like a Panther. She is one a group of purebred cats that are designed to look like wild cats.

Black traditional Persian Cat in Street
Another black Traditional Persian Cat on the pavement. Photo copyright Chrys Campos.

There is a lot of history behind the black cat. Some people consider them unlucky, some lucky and some inbetween, basically there is a mass of superstition in relation to black cats.

Despite being unlucky for some, black cats may also be able to help us understand more about how cells in our body defend themselves from infection. The tabby (particularly brown tabby) cat is the most common cat coat color and pattern. You can see some great tabby cats by clicking on this link and see all the cat coat colors as well with summarizes descriptions as to how the coats come about.

Black Persian cat tired out on sofa
Black Traditional Persian Cat photo copyright gammateilchen. He is bushed after too much activity. Persians like to site and watch. I love the expression on his face.

The brown tabby is the most common because it is the most successful as it affords the cat the greatest protection in terms of camouflage. Cat coats evolve pursuant to Darwinian principles.

A successful UK wildcat that has survived against the odds and that has a brown tabby coat is the Scottish Wildcat. The American equivalent is the American Bobcat. So why do some cats have black coats? Why did black coats evolve at all? The Black Panther (a melanistic Jaguar) wild cat comes to mind.

Young traditional Black Persian cat on sofa looking calm
Young traditional black Persian Cat looking calm and interested. Photo copyright schadenfreude.

Research carried out in America (at the National Cancer Institute and University of Maryland) indicates that the gene that produces black fur (or more accurately the pigmentation in the fur) also plays a role in boosting genetic resistance to diseases. The main function of the gene in Jaguars is to regulate what passes through the membrane of the cells of the body. The gene is one of a group of genes called 7-transmembrane receptors. In regulating what can get into a cell the gene is able to help improve resistance to viruses that need to enter cells to survive.

The argument is that the black fur gene has evolved because it serves more than one purpose, one at least of which improves the cat's chance of survival. It could also be argued that black fur increases the chances of survival as well as cats commonly hunt at dusk and at night and obviously black makes them less visible. Cats have developed specialist eyesight to see better in the dark.

Persian cats are well known for their long fur. Some might argue that it is too long sometimes as it needs regular grooming by the human keeper and the cat should stay indoors to prevent the coat picking up dirt and other objects. The gene that produces this, sometimes exceptionally long, fur is called the Long hair gene (strange that :-). In the dominant form (L) it is produces short hair and in the recessive (l) form it codes for long hair.

In long haired cats the recessive gene delays the time at which hair growth stops. Apparently the technical term for hair growth is anagen.

Sources:
  • BBC
Black Persian Cat to Pictures of Persian Cats

Comments

Popular posts from this blog

Cat Ear Mites

Brown gunge. Yes, I know this is a ferret! It does show the build up of dark brown to black ear wax caused by the presence of the cat ear mites in the outer ear canal. This parasite is not restricted to the domestic cat, which makes this photo valid and a useful illustration (I was unable to find a suitable photo of a cat with the condition). Photo Stacy Lynn Baum under a creative commons license. Ear mites (minute crab like creatures) are one of the causes of inflammation of the outer ear canal (scientific term for this inflammation is Otitis externa ). The outer ear canal is the tube that runs from outside to the ear drum (the pathway for the reception of sound), which can be seen when looking at the ear. Otitis externa affects humans and often swimmers as it is called "swimmer's ear" in humans. This YouTube video show ear mites under a microscope. They are not actually in the ear in this video. There are many possible causes of Otitis externa in c

Feline Mange

I'll write about three types of feline mange (a) feline scabies or head mange (b) demodectic mange and (c) sarcoptic mange. The source material is from Cat Owner's Home Veterinary Handbook - the best on the market . Generalised feline mange? Puerto Rico - Photo by Gotham City Lost And Found Feline Scabies - head mange Head mange or feline scabies, is a fairly rare condition in cats, which is caused by the Notoedres mite (head mite) that only reproduces on cats. The female mites burrow a few millimeters (that is a lot) into the skin around the head, and neck to lay eggs, which hatch and lay their own eggs. Their presence and activities causes intense itching that in turn causes the cat to scratch. The scratching will obviously be noticed and it will cause the skin to become red, scratched and worse infected. Symptoms: hair loss and scabs, thick wrinkled skin and grey/yellow crusts form plus the symptoms of scratching. Feline mange (head mange) is contagious and tr

Cat Anatomy

Cat Anatomy - Photo by Curious Expeditions . The picture above was taken at Wax Anatomical Models at La Specola in Florence, Italy. The photograph is published under a creative commons license kindly granted by the photographer. I am sorry if it is a bit gruesome. It is pretty well all I could find as an illustration that was licensed for publication. Cat Anatomy is a very wide ranging subject. The anatomy of a cat is very similar to human anatomy. If you were writing a biology book for students of biology you would go through every part of the a cat's anatomy in some detail. It would be similar to writing a book about the human anatomy. It would be a thick book and pretty boring for your average internet surfer. So, how do you limit such a big subject and make this post meaningful? The answer I think lies in doing two things: Having a quick general look at cat anatomy - an overview and; Focusing on the areas of cat anatomy that are particular to the cat and of parti