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.

10 Vet-Verified Cornish Rex Facts That Cat Lovers Should Know

Share

Black Cornish Rex Cat

Cornish Rexes are known for their charming appearance and personality. These unique-looking cats are sure to catch one’s eye with their curly coats, bat-like ears, and slender features. People usually end up falling in love with them even more after getting to know them. These cats are playful and social and are known to turn many people into cat lovers.

There are countless wonderful things to say about Cornish Rexes, and it would take forever to name each one. So, we’ve chosen our top 10 favorite facts about them.

divider 1 paws

The 10 Cornish Rex Facts

1. The Name of the First Cornish Rex Was Kallibunker

The first Cornish Rex wasn’t bred intentionally. The first Cornish Rex was a male kitten named Kallibunker, and he was the first known and documented cat with a curly coat. He was born in 1950 in Cornwall, England. His mother was a regular barn cat and his father was unknown. His mother gave birth to a litter of four kittens. Kallibunker was the only kitten in the litter with curly hair.

Unfortunately, Kallibunker lived a relatively short life and lived only until he was 6 years old. Before he died, Kallibunker helped to produce litters of kittens with curly coats, which all contributed to developing the Cornish Rex breed into what it is today.


2. Their Curly Hair Is a Natural Genetic Mutation

Cornish Rexes get their coats from a genetic mutation through autosomal recessive inheritance. The curly coat is caused by a recessive allele so a cat must inherit two recessive alleles (one from each parent) for them to have a curly coat. However, if they inherit only one of the recessive alleles, they will be a carrier for the curly coat, but will not have a curly coat.  Carriers can still produce a litter of cats with curly coats if they are mated with another cat that either has a curly coat i.e. has inherited two copies of the curly coat allele, or a cat that is a carrier of the gene.

Cornish Rex kitten
Photo Credit: Elena Loginova, Shutterstock

3. Cornish Rexes Are the Oldest of the Rex Cat Breeds

The Cat Fanciers’ Association (CFA) acknowledges three types of Rex cats: Cornish Rex, Devon Rex, and Selkirk Rex. The Rex cats share some similar features, such as having unique coats and playful personalities. However, they’re recognized as three distinct breeds.

The Cornish Rex was first discovered in 1950. The Devon Rex arrived next in 1960 when a curly-coated cat was born in a litter of cats in Devon, England. The Selkirk Rex comes from completely different origins and was first discovered in 1987 in Montana.


4. Cornish Rexes Are Very Playful

Cornish Rexes are very athletic and playful. So, if you’re looking for a calm lap cat, you’ll want to look elsewhere. Since they’re such a high-energy breed, they’ll need plenty of interactive toys that’ll help expend that energy and provide much-needed mental stimulation.

A Cornish Rex will also appreciate being able to climb up high places. So, if you don’t want your Cornish Rex to climb up your kitchen cabinets or bookshelves, you’ll want to make sure to get a cat tree and set up some cat perches throughout your home.

close up of a cornish rex with green eyes
Image Credit: Jenni Ferreira, Shutterstock

5. Cornish Rexes Are Friendly and Social

Many people say that Cornish Rex cats have dog-like personalities. They’re not known to be shy with strangers and tend to warm up to people fairly quickly. They often love a good game of fetch, too!  Because they’re very sociable, they don’t do well being home alone for long hours. They can also get along with young children fairly well, and they can be fun playmates for each other. Cornish Rex cats often adjust well to living with a dog or another cat in the home.


6. Cornish Rexes Are Very Sensitive to Temperatures

Cornish Rex cats have a relatively thin coat, so they often engage in more heat-seeking behavior than your average cat. Their coat type also makes them more sensitive to heat, so it’s important to keep them out of the sun to prevent sunburn.

Some Cornish Rexes won’t mind wearing sweaters to keep warm, but if they don’t like clothes, it’s important to have plenty of warm spots set up throughout their home. They’ll love having extra blankets and pillows laid out for them.

Cornish Rex Cat Breed
Image Credit: duodenum82, Pixabay

7. Cornish Rexes Have Uniquely Shaped Bodies

Cornish Rexes are often called the greyhounds of the cat world. Both the Cornish Rex and the greyhound share similar slim and athletic features. Cornish Rex cats also look like they’re galloping when they run, and it’s reminiscent of when a greyhound runs.

Along with having social and playful personalities, Cornish Rexes are also known to learn tricks, like fetching balls. They enjoy running around, so it’s not uncommon for them to engage in races with other cats and pets in the home.


8. Cornish Rexes Come in Many Colors and Patterns

You can find Cornish Rexes in more than 40 colors or patterns. There are plenty of Cornish Rex cats that have common coat colors and patterns, like black, gray, white, bi-color or tabby. Cornish Rexes can also have color-point patterns that are similar to Siamese cats.

The CFA currently recognizes all colors and patterns of Cornish Rexes. So, it’s most likely you’ll come across a wide variety of Cornish Rexes if you’re looking to adopt one.

Cornish Rex
Image Credit: Grigorita Ko, Shutterstock

9. Cornish Rexes Aren’t Hypoallergenic Cats

There’s a myth surrounding Cornish Rexes that they’re hypoallergenic cats due to their unique coat type. Unfortunately, Cornish Rexes aren’t actually that much better for cat allergy sufferers than most other cat breeds. This is because people get allergic reactions from a protein found on a cat’s skin, saliva, and urine, not their hair.

Pet dander often sticks to an animal’s hair and can become airborne or stick to furniture when an animal sheds. Low-shedding cat breeds can help a little with allergies because there’s less hair that will spread dander. However, this still doesn’t guarantee that a person with cat allergies can live with low-shedding cats.


10. Cornish Rexes Are Healthy and Have Long Lifespans

Cornish Rexes are generally healthy, long-lived cats.  Of course, as a pedigree cat, Cornish Rexes have a smaller gene pool than the domestic short hairs, so are prone to some genetic conditions. Two of the more common genetic health issues that Cornish Rexes can inherit are autosomal dominant polycystic kidney disease (AD-PKD) and progressive retinal atrophy (PRA).

It’s important for anyone looking to care for a Cornish Rex as a pet to be prepared for a long-term commitment. Their average lifespan is about 15 years, but many can live to 20 years old.

Tortoiseshell Cornish Rex cat sitting on the stairs
Image Credit: natalean, Shutterstock

divider 1 paws

Conclusion

Cornish Rexes are a wonderful cat breed that many people fall in love with. It’s no surprise that these friendly and funny cats have such a strong and loyal fanbase. They make excellent pets for many people with different kinds of lifestyles. Since they’re a pretty healthy breed and have longer lifespans, you’ll share many happy days living with these feline companions.

See Also: 


Featured Image Credit: absolutimages, 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.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Welcome to Coastal Cats & Critters

As much as we all love cats, we also know that in many parts of the country (and the world), the problem of...

Ask Dr. Paola – Help! My Cat Suddenly Has Dandruff! (March 30, 2026)

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

Your Cat Keeps Vomiting After Eating: Here’s What’s Going On

Cats vomit. It’s one of the less glamorous facts of life with a feline, and most cat owners have cleaned up more than...

Ask Dr. Paola – Help! My Cat Gets Diarrhea from Wet Food! (March 23, 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

Can Cats Be Double-Jointed? Our Vet Explains Facts & FAQ

A common phrase associated with cats is, “If I fits, I sits.” They can contort into some of the craziest positions, and you...

10 Vet-Reviewed Types of Cat Litter Boxes & How to Pick the Right Litter Box for Your Cat

Plenty of litter boxes are on the market, each with pros and cons. But which is right for your cat? Choosing the ideal...

Korat Cat vs Russian Blue: Main Differences (With Pictures)

Korats and Russian Blues share a striking resemblance, even though the countries they hail from are more than 3,000 miles apart. Both breeds...

Liposuction for Cats: Our Vet Explains What it Is & Safety Considerations

Obesity seems to plague our feline companions. It is estimated that 50% of feline veterinary patients are overweight, and our veterinarians routinely tell...

Keep reading

Bugs in Your Cat Litter Box? Vet-Approved Cleaning & Prevention Tips

Removing your cat’s poop and pee from their litter box is one thing, but when it comes to finding nasty little bugs in there, it can be too much for a cat parent to bear! What are these tiny insects,...

Cat with Litter Box

9 Best Hairball Remedies for Cats in 2026 – Reviews & Top Picks

It’s never pleasant when your best feline friend coughs up a hairball. With cats cleaning themselves so often, it’s inevitable for all that fur to cause problems. Hair, or fur in this case, can’t be digested. These nine reviews will...

cat hairball

Can Cats Eat Quinoa? Vet-Reviewed Facts to Know

Quinoa has become known as a superfood for humans. We can add it to just about anything to enhance the texture and nutrients within a meal. However, can our feline friends enjoy this food too? Yes, cats can safely eat...

Can Cats Eat Quinoa

Sudden Death in Cats: 10 Vet-Verified Causes

Sudden death in cats is a tragic event that often occurs without any warning. There are many possible causes of sudden death in cats, although some preventative steps can be taken to help avert this tragedy. One of the most...

sick siberian cat

Nutrition For Kittens: Complete Vet-Approved Guide, Science, Health Tips & FAQ

Kittens are some of the most adorable creatures on earth, and if you’ve recently adopted one, congratulations, and get ready for the time of your life! Now that your new buddy has arrived, you may be looking for tips to...

kitten eating

Why Does My Cat Try to Bury Her Food? 3 Vet-Reviewed Reasons for This Behavior

Domestic cats sometimes act a little strange. Whether having a five-minute case of the zoomies or refusing to come out and meet your friend who popped by to say hi, it can be hard to predict what our cats will...

cat caching

Why Do Cats Act Weird When Scratching the Base of Their Tail? 10 Vet-Reviewed Reasons

It’s not uncommon for cats to act weird when you scratch the base of their tail. This area is quite sensitive, and cats respond one way or another. Additionally, a tail that sticks straight upright into the air is referred...

young cat breathing heavily

Purina Cat Chow Naturals Food Review of 2026: Recalls, Pros & Cons

Review Summary Purina Cat Chow Naturals Dry Cat Food is a premium cat food from a company well known for making high-quality food across all of their lines. We feel that this is a great alternative to your cat’s regular...

Purina Cat Chow Cat Food Review

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.