You may have noticed your feline friend staring at herself in the mirror or at another shiny surface once or twice. But do cats understand mirrors? Does she know that she's gazing at herself?

Who's That Kitty?

For nearly half a century, scientists have studied the concept of self-recognition in animals, including cat self-awareness. For many creatures, the evidence for this cognitive skill remains inconclusive.

This doesn't mean that our furry friends lack the smarts to recognize themselves; rather, it comes down to the cognitive capabilities of their species. "It takes a good deal of sophisticated integration of information about yourself and your own movements and what you're seeing in front of you in that glass" to recognize your mirror image, animal psychologist Diana Reiss tells National Geographic. This also applies to newborn humans. Babies have no clue about what they look like until they are older than one year of age, notes Psychology Today.

As explained by Popular Science, cats actually don't recognize themselves in the mirror, despite what you see in those cute cat videos or in your own home. When they spot a mirrored kitty, some cats will duck behind the mirror to look for the other cat, some will ignore the reflection and others will "act wary or aggressive towards what appears to be another cat able to counteract [her] own gestures perfectly." This "attack posture" may seem like your kitty is waving to herself, Popular Science says, but she's actually in defense mode. Your kitty's puffed-out tail and the way her ears are tilted are a response to the "threat" of her own reflection.

What Science Can Tell Us

There's scientific evidence to support the claim that many animals do (and don't) recognize themselves in a reflection. Scientific American writes that when an animal glimpses itself in a mirror, "it may not understand 'That's me!' in the same way as a human would, but it may know that its body is its own and does not belong to someone else." Examples of this understanding include instances when animals recognize the abilities and limitations of their own bodies while performing physical activities, such as running, jumping and hunting. You'll see these concepts in motion when, say, your cat jumps to the top of the kitchen cabinets.

Studying animal cognition is difficult, as you may well imagine, and testing can be problematic for various reasons. Scientific American references the issues with the "red spot test," also called the mirror self-reflection test, a well-known study conducted in 1970 by psychologist Gordon Gallup and published in The Cognitive Animal. Researchers placed an unscented red dot on a sedated animal's forehead and then observed how the animal, upon waking up, reacted to its reflection. If the animal touched the red spot, Gallup hypothesized, it was an indication that the animal recognized the altered state of its own appearance: in other words, self-recognition.

Although most animals failed Gallup's test, a few did pass, such as dolphins, great apes (gorillas, chimpanzees, orangutans and bonobos) and magpies. Not included in this list? Dogs and cats.

The failure of most animals is not surprising, some critics say, because many creatures simply don't know what they look like. Cats and dogs, for example, rely on their olfactory sense to identify pieces of their surroundings, such as their home, their pet parents and other pets. Your cat knows who you are not because of facial recognition but because she knows your scent. Animals that don't have an instinct to groom may also recognize a red dot on themselves but not feel the need to remove it.

Starting With the Cat in the Mirror

Do cats understand mirrors? Maybe. The extent of cat self-awareness is still a mystery. Despite all of the wisdom contained in her all-knowing eyes, when your cat's pacing back and forth in front of mirror, she's probably not admiring the sleekness of her coat or the smoothness of her freshly-trimmed nails.

More than likely, she's investigating the stranger that is too close for comfort. If looking in a mirror stresses out your kitty, remove the mirror if possible and divert her attention with fun DIY toys, catnip mice or jingly balls. If she stares calmly into the eyes of the cat before her, who knows? She may just be pondering her own existence.

Christine O'Brien Christine O'Brien

Christine O'Brien is a writer, mom, and long-time cat parent whose two Russian Blues rule the house. Her work also appears in Care.com, What to Expect, and Fit Pregnancy, where she writes about pets, pregnancy, and family life. Find and follow her on Instagram and Twitter @brovelliobrien.

Related articles

Can Cats See TV?

Do cats actually watch TV when they're chilling out on the couch with you? Learn more about how cats engage with and react to electronic screens.

Kitten's Development Milestones: First Weeks & Months

Follow this timeline to learn the weekly & monthly progression of your kitten's development, including when to expect her to start walking & needing vaccines.

Can Cats See in the Dark? (& How Well?)

Wonder if cats can see in the dark? Learn about feline night vision, including how their nighttime vision works & how it evolved compared to humans.

Senior Cat Accessories & Household Changes: What Your Aging Cat Needs

Discover the senior cat accessories your older kitty might benefit from and how you can make a few minor home changes to help your cat as they age.

Choosing the Right Food for Your Senior Cat

Senior cats over age 7 have different nutritional needs than younger cats. Learn what to look for when choosing a food for older and aging felines.

Should I Get My Cat Groomed by a Professional?

Cats often do a lot of grooming themselves, but learn some sticky situations where consulting a professional groomer might be the right call.

Stage 1 Kidney Disease in Cats Often Goes Unnoticed

Learn more about stage 1 kidney disease in cats, such as the cause, symptoms, treatment and how the proper food can help manage her condition.

Senior Cat Problems: What You Should Know About Aging Cats

Get to know the problems often associated with aging cats, so you can help them get the most of out of their remaining years.

What Is Cat Nuzzling?

Learn the reasons why your cat nuzzles you or other pet siblings, including factors like affection, marking territory and more.

Can Cats Eat Peanut Butter?

Learn whether it's safe and healthy to give your cat peanut butter, including certain ingredients to watch for that can be toxic.

Should You Give Your Cat Bread?

A slice of warm bread is a tasty treat for many pet owners but should it be shared with a feline friend? Can cats eat bread, or is bread bad for cats? Before giving your pet some of your sandwich or baguette, here's what you need to know about cats and bread.

Signs That Your Cat is Grieving & How You Can Help

Learn what cats go through during times of loss of another animal or human in the household, and understand whether they grieve or not.

Can Cats Have Pumpkin? (& Is It Healthy?)

Learn whether or not its healthy for cats to eat pumpkin, how much would be an appropriate amount, and types of pumpkin that you might want to avoid.

Helping Your Cat Lose Weight: Food & Exercise Tips

Obesity is a health condition that affects many cats these days. Use these easy to follow methods to help your cat lose weight and keep it off.

Keeping Your Cat's Mouth Healthy

Learn how to brush your cat's teeth vs. having a professional cleaning done, as well as common signs that she might have an oral health problem.

Is Daycare Right for Your Cat?

Learn all you need to know about daycare for cats, from how to choose a facility to tips for helping your cat feel comfortable at their daytime home.

All About Cat Fleas

Discover how your indoor cat can get fleas, how to spot signs that she has them, and tips for getting rid of them & preventing them in the future.

Keeping Your Cat Hydrated if She's Not Drinking Water

Learn why your cat is drinking less water than she used to, how much she should be drinking, and how to recognize and prevent her from getting dehydrated.

Benefits of Neutering a Cat

Learn about when the best time to spay or neuter your cat is, and the health benefits that accompany the surgery.

How to Handle Cat Spraying

Puppy, kitten and pet dieting, cat nutrition and dog nutrition information from Hill's Pet