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Manx cat

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The Manx cat is a unique breed of domestic cat (*Felis catus*) known for its distinct physical shape.

Manx Silverwing
Manx Silverwing

Most people recognize them by their lack of a tail. This trait is caused by a mutation in the spine. This mutation is controlled by a dominant gene. Because the gene is dominant, it is easily passed to offspring. This can even affect other breeds if they are crossed with a Manx.

Manx Cat Inheritance
Manx Cat Inheritance

Beyond the tail, they have rounded heads and elongated hind legs. They are also known for being social, tame, and very active animals.

The tail length in Manx cats varies significantly due to how the gene expresses itself.

A Rumpy Manx Cat
A Rumpy Manx Cat

There are five specific classifications for their tails. A "rumpy" or "dimple rumpy" has no tail at all, often with just a small tuft of hair. A "rumpy riser" has a small bump of cartilage under the fur. A "stumpy" has a partial tail made of fused vertebrae, up to about 2 inches long. A "stubby" has a short tail of non-fused bones, up to about half an average cat tail. Finally, a "longy" has a half-length to normal-length tail.

Rumpy Riser Manx Kitten
Rumpy Riser Manx Kitten

While all these types come from Manx ancestry, only the shortest tails usually meet breed standards for shows.

Understanding the genetics of the Manx requires looking at how genes interact.

Orange Stumpy Tail Manx
Orange Stumpy Tail Manx

The taillessness is a body-type mutation of the spine. It does not "breed true," meaning two tailless cats may still produce kittens with tails. The length of the tail in a litter is actually quite random. Some kittens may inherit the gene, while others do not. Because the gene is dominant, it can "invade" other breeds during breeding. This happens even if the owners do not realize a Manx cat is involved. It is important to note that Manx cats do not have balance issues. In mammals like cats, balance is primarily controlled by the inner ear rather than the tail.

There is a long history of folklore surrounding these cats.

Manx Beatrice
Manx Beatrice

Some legends claim a tailless cat swam to the Isle of Man from a shipwreck. Another story suggests Noah accidentally cut off a cat's tail when closing the door of the Ark. There was even a myth that they were hybrids of cats and rabbits. These stories were meant to explain the cat's unusual appearance and hopping gait. However, these tales are not scientifically accurate. In reality, the cats are descended from mainland stock. They are ultimately descended from the African wildcat (*Felis lybica*).

The Manx originated on the Isle of Man, where they are a substantial part of the local population.

GeorgeManxProfile
GeorgeManxProfile

The trait became common due to the limited genetic diversity of island biogeography. This is an example of the founder effect. In small, isolated populations, certain traits can become very frequent. While the Manx is most famous on the Isle of Man, similar cats appear elsewhere. Some populations exist in Cornwall or on the Danish peninsula of Reersø. Similar cats are also found in Crimea. It is unknown if these are related to the Manx or are just a similar result of island genetics.

Manx cats have been recognized in the world of competitive cat shows since the late 1800s.

Shadow Manx
Shadow Manx

In the early days, they were often placed in a general category called "Any Other Variety." The first informal breed standard was published in 1903 by Charles Henry Lane. Lane was an expert who owned a famous white rumpy Manx named Lord Luke. Not all experts agreed on the breed's value at the time. In 1908, Frank Townend Barton argued that the lack of a tail did not add beauty. Despite this, the Cat Fanciers' Association recognized the breed early on. They have had records of the breed in North America since the 1920s.

It is easy to confuse the Manx with other short-tailed breeds, but they are quite different.

Manx Cat Inheritance
Manx Cat Inheritance

The Japanese Bobtail is a distinct breed with a different genetic makeup. The Japanese Bobtail has a tail that looks like a fluffy pom-pom. Their tails are often kinked or curled. In contrast, a Manx cat has a straight tail if it has one at all. The Japanese Bobtail also has almond-shaped eyes and a triangular face. Furthermore, the gene for the Japanese Bobtail is recessive. The Manx gene is dominant and can lead to different health considerations. This makes the Manx a genetically unique subject of study.

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🖼️ Images & Media (8)
File:Manx Silverwing.JPG
Manx Silverwing.JPG
File:Manx Beatrice.jpg
Manx Beatrice.jpg
File:A Rumpy Manx Cat.jpg
A Rumpy Manx Cat.jpg
File:Rumpy Riser Manx Kitten.jpg
Rumpy Riser Manx Kitten.jpg
File:Orange Stumpy Tail Manx.jpg
Orange Stumpy Tail Manx.jpg
File:Shadow Manx.jpg
Shadow Manx.jpg
File:GeorgeManxProfile.jpg
GeorgeManxProfile.jpg
File:Manx Cat Inheritance.png
Manx Cat Inheritance.png
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