A tabby is a kind of cat. 
A tabby is not a breed of cat. 
Some tabbies have thin stripes like a fish. These are called mackerel tabbies. Others have thick, swirling bands. These are called classic tabbies. 
These patterns come from their wild ancestors. Many wild cats have similar coats. This helps them hide. Tabbies are found all over the world.
A tabby is not a breed of cat. It is a pattern on their fur. 

There are four main patterns. The mackerel tabby has thin stripes. These look like the bones of a fish. The classic tabby has thick, swirling bands. These bands can look like a bullseye on their sides. 
Some cats have patches of color. A torbie cat has both orange and black patches. If the cat also has white fur, it is called a caliby. These patterns are part of the cat's genes. Genes are the instructions that tell a body how to grow.
A tabby is not a specific breed of cat. Instead, it describes a coat pattern found on many different cats. 

There are four main ways the tabby pattern looks. The mackerel tabby has thin, vertical stripes that curve along the body. 
These patterns are controlled by genes, which are instructions inside a living thing. The agouti gene decides if a tabby pattern shows up at all. If a cat has two recessive alleles, it might look like a solid color. However, you might still see "ghost striping" in bright light. The tabby gene locus has different alleles that change the pattern type. For example, the mackerel pattern is dominant over the classic pattern. A fifth pattern can appear in female cats with both orange and black genes. These cats are called torbies or calibies if they have white fur.
History shows us that the word "tabby" has interesting roots. It originally came from a word for striped silk cloth. 
Even though they look different, coat color does not change how a cat acts. A 2015 study from the University of California, Davis looked at this. Researchers used 1,274 online surveys from cat owners. They asked about how aggressive cats were with humans and vets. The study found that color had only a minor link to behavior. Most differences in behavior were linked to whether the cat was male or female. People might think orange cats are friendlier, but science suggests otherwise.
A tabby is not a specific breed of cat. Instead, it is a description of a coat pattern. 
There are four main types of tabby patterns recognized by science. The mackerel tabby is the most common version. It features thin, vertical stripes that curve along the cat's sides. These stripes are sometimes called "fishbone" patterns. The classic tabby, or blotched tabby, has thick, curving bands that swirl in whorls. These markings often look like a bullseye on each side of the body. 
These patterns are controlled by specific genetic instructions called alleles. The agouti gene locus is the first major factor. It has two alleles: the dominant A and the recessive a. The dominant A allele allows the tabby pattern to show. If a cat has the recessive aa combination, it will have a solid color. However, you might still see "ghost striping" in bright light. The tabby gene locus contains three more alleles that determine the specific pattern. The mackerel pattern is dominant over the classic pattern. If a cat has one of each, it will show the mackerel pattern.
Genetic interactions can also create more complex looks. The spotted gene is a separate locus that can break lines into spots. A spotted cat must have at least one mackerel allele and one spotted allele. Another interesting variation involves the orange color gene, known as the O allele. This gene is sex-linked, meaning it is passed down through X chromosomes. Because of this, about 75% of ginger tabby cats are male. Female cats can also carry both orange and black genes. This results in a fifth pattern called a torbie, which features random patches of both colors. 
The history of the word "tabby" is as colorful as the cats themselves. The term originally described a type of striped silk cloth called "tabis" in French. This word came from the Arabic term "attābiyya." This was the name of the Attabiya district in Baghdad, which was famous for its striped silk. This cloth became popular in the Muslim world and eventually reached England. In the 1690s, people began using the term "tabby cat" for cats with striped coats. By 1774, the term was simply shortened to "tabby." Some believe the name "Tabby" for female cats comes from the nickname for Tabitha.
Some people wonder if a cat's color affects its personality. A 2015 study from the University of California, Davis investigated this question. Researchers analyzed 1,274 online surveys from cat owners. They asked owners to rank how aggressive their cats were during human or veterinary interactions. The study found that coat color had only a minor link to behavior. Most significant differences in aggression were actually linked to the cat's sex. The researchers suggested that humans might just perceive colors differently. For example, people often believe orange cats are friendlier than other cats.
Understanding tabby patterns helps scientists learn about genetics and evolution. By studying how these genes interact, researchers can see how traits are passed through generations. The way the spotted gene modifies the mackerel pattern is a great example of genetic complexity. These patterns also show the deep connection between domestic pets and their wild ancestors. Even though we see them in our homes, the tabby pattern is a beautiful link to the history of the natural world.
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