Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Do Tabby Cats Have an “M” on Their Forehead? Myth Vs Genetics (Vet-Reviewed)

Share

funny-gray-cat-on-a-sofa

Tabby cats are known for their beautiful and unique coat patterns. One of the most distinctive markings on a tabby cat is an “M” on their forehead. It’s unclear as to why tabby cats have this marking, but there are several interesting myths and legends that have arisen over the years. Here are some fun stories about how tabby cats got the M-shaped marks on their heads.

divider cats oct 2024

Mark of the Moon

Cats have lived alongside the Ancient Egyptians and were regarded as very spiritual animals. The Ancient Egyptian word for cat was “mau,” and it can also be translated to “seeing” or “light.” The correlation between cats and the moon’s light led to focusing on a cat’s eyes and how they looked bright like the moon. So, the M shape on a tabby cat’s forehead is often known as a mark of the moon.

a close up of an orange tabby cat
Image Credit: Sam Chang, Shutterstock

The Mark of Mary

There’s a fun legend about an exchange shared between Mary, the mother of Jesus, and a cat. Right after the birth of Jesus, Mary had placed Jesus in a bed of hay. However, the hay didn’t provide enough warmth, and baby Jesus began to shiver and cry from the cold. Mary asked all the animals in the manger to huddle together to garner more warmth, but the manger remained too cold.

Finally, an observant cat decided to step in and lie next to baby Jesus. The cat cuddled with baby Jesus and purred a lullaby that soothed and comforted him. Out of appreciation, Mary stroked it, and an “M” appeared on the cat’s forehead. This mark was to forever remind people of the tabby cat that comforted baby Jesus and Mary.

Blue Tabby Point Ragdoll Cat
Image Credit: cath5, Shutterstock

Muhammad’s Cat

Another story attributes the M-shaped marking to the Prophet Muhammad. In this story, Muhammad had a cat named Muezza. This cat would occasionally fall asleep on Muhammad’s shirt sleeve. Muhammad didn’t want to disrupt his cat’s sleep, so he would cut the sleeve whenever he had to leave for a call to prayer.

One day, a venomous snake had snuck into one of the sleeves of Muhammad’s robes. The cat saw the snake hiding inside the robe and killed it before Muhammad could wear the robes. Muhammad was so grateful to the cat and gifted the cat with the ability to always land on their feet. He also petted the cat, and the M-shaped marking remained where Muhammad had touched the cat.

divider 3 paws

Genetics and a Tabby Cat’s Coat Patterns and Markings

tabby cat patterns
You are free to use this image, but we do require you to link back to Catster.com for credit

While it’s fun to learn about these myths and legends, genetics can better explain the reason behind a tabby cat’s stripes and markings. There are multiple genes that are associated with the tabby cat’s coat patterns:

  • The Agouti (A) gene determines whether a cat’s coat will show banded hairs or a solid color.
  • The Tabby (Ta) locus then determines the specific tabby pattern: mackerel, classic (blotched), spotted, or ticked.

The “M” marking on the forehead is a natural part of the tabby pattern and appears in all agouti tabby cats, regardless of pattern type. While the exact genetic mechanism for the shape of the “M” is not separately controlled by a distinct gene, it is the visual result of pigment distribution governed by these coat-pattern genes.

There’s ongoing research on how expression of the Dkk4 gene and other patterning regulators in fetal skin cells contributes to tabby pattern formation, but more work is needed to determine the precise molecular pathways.

divider 2 cats

Conclusion

Several fun myths and legends give explanations for how the M-shaped marking appeared on a tabby cat’s forehead. However, the real cause of this unique marking can be attributed to genetics. It’s quite a complex process that researchers still can’t fully explain. So, whether it’s myth or science, the tabby’s marking is unique and worth talking about and admiring.

See also:


Featured Image Credit: Kichigin, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

A Paw-sitive Milestone: Canada Officially Becomes a Declaw-Free Nation

Canada has officially become a declaw-free nation. On May 25, 2026, a new regulation was filed in Ontario under the Provincial Animal Welfare...

The Surprisingly Simple Ways to Help a Cat With Hairballs

Cats spend an astonishing amount of time grooming. It is part hygiene routine, part comfort ritual, and part instinct that traces back generations....

What a CATastrophe! A Tire-ing Ordeal For a Pony in the UK

As you would expect, our weekly news updates are usually centered around feline topics – we are a cat care website after all...

Ask Dr. Paola – Help! My Cat Has Stopped Eat His Wet Food! (June 1, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

More related

What a Very Bad Kitty Taught My Family

We are a family of cat people. If not quite cat whisperers, we’ve taught our cats to come when called and stay off...

7 Cat Haircut Styles for Inspiration (With Pictures)

While most cats don’t need a haircut, sometimes you might still need to book a trip to the groomer. Getting your cat’s hair...

Jungle Curl Breed Info: Pictures, Temperament & Traits

The Jungle Curl is a mix of the American Curl and the African Jungle Cat. These curled-eared hybrids are rapidly gaining popularity due...

Can Cats Eat Salad? Vet Reviewed Health Benefits & Warnings

Cats are obligate carnivores, which means they have to eat meat for proper nourishment. But every so often, some cats like to indulge...

Keep reading

Can Cats Eat Venison? Important Facts & Health Guidelines 

The word “venison” (from the Latin verb venari, meaning “to hunt”) refers to meat from large game animals, most commonly deer. Though not the most typical protein in commercial cat foods, venison is used in some food formulas. Home-prepared venison...

Can Cats Eat Venison

Can Stress Cause a Heart Murmur in My Cat? Here’s What You Should Know

Normal, healthy cats can get temporary heart murmurs due to stress1. The adrenaline and cortisol released into their bloodstream in stressful situations cause temporary changes to their cardiovascular system. However, this isn’t necessarily a problem. The heartbeat goes back to...

nebelung cat in vet clinic

Why Do Cats Like Boxes So Much? 6 Vet-Reviewed Reasons Behind the Behavior

How many times have you cut a delivery box open only to turn around and find your cat has already made themself at home inside of it? Probably every time. A cat’s natural curiosity draws them in, and then their...

cat in a cardboard box

Can Cats Eat Bully Sticks? Vet Approved Nutrition Advice

Multi-pet households come with their fair share of challenges, one of which is keeping separate treats for your cats and dogs. Both animals have different nutritional requirements, and while your dog might not have a problem stealing a few cat...

Can Cats Eat Bully Sticks

Why Does My Cat Growl? Meaning, How You Should React & FAQ (Vet-Verified)

Pet cats are usually friendly and interactive with their human companions. But sometimes, they display aggressive behavior, such as growling. You may be wondering why cats growl and what it means when they do it. Is your cat acting territorial,...

angry cat hissing

9 Best Cat Dewormers in 2026 – Reviews & Top Picks

You’ve seen worms in your cat’s stool. Parasites come in all shapes and sizes. Some are microscopic but wreak havoc on our cat’s body, triggering vomiting and diarrhea. Other parasites, like roundworms and tapeworms, can be visible to the naked...

owner giving tablet medicine to cat

Can Cats Eat Clover? Common Herbs Examined

Cats are curious creatures and love to paw and nibble at plants. Clover plants are among the many plants that are poisonous to your feline. They are sometimes called shamrock, the good luck plant, or sorrel. The bitter taste of...

Can Cats Eat Clover

Can Cats Die of Old Age? Vet-Approved Facts & Care Tips

Our beloved cats give us a lifetime of love, laughter, and joy, but aging will ultimately take its toll on all of us. It’s fairly common to hear that a pet died of old age, but this is a common...

senior calico cat on kitchen towels

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.