Why Do Cats Have Whiskers? The Science Behind Your Cat’s Secret Superpower

Cats have whiskers to sense their surroundings, navigate spaces, hunt and communicate with you and each other. Whiskers are more than just weird hairs; they are biological sensory tools with diverse uses.

Did you know that the real name for the things we call “whiskers” is actually “vibrissae”? Essentially, a cat’s whiskers are like a built-in radar system, affecting how felines interact with the world around them.

In this guide, we will look at their evolutionary benefits and the specific things cats use them for to help you understand why they are a secret superpower for your furry friend.

What Are Cat Whiskers?

Cat whiskers are specialised tactile hairs that are actually called vibrissae. They are visibly thicker and more rigid than normal fur, and they are actually rooted around 3x deeper than standard hairs. Their follicles are packed with nerve endings and blood vessels.

You will find that a cat’s whiskers are actually located in multiple places on their bodies:

• Muzzle: These are the most prominent whiskers on a cat.

• Above eyes: The supraorbital whiskers are still quite prominent to spot.

• Chin: Look closely and you will notice these smaller vibrissae.

• Back of front legs: These ones are called carpal whiskers.

Whiskers are incredibly sensitive and can detect minute changes in air currents and vibrations. It’s one of the reasons it’s so hard to sneak up on a cat. Whiskers act as an extension of the nervous system.

Why Do Cats Have Whiskers?

There are several reasons why cats have evolved whiskers. They are beneficial for spatial awareness, hunting, balance and protection. Let’s look at each of these categories in a little detail.

Navigation and Spatial Awareness

Whiskers help cats detect objects without touching them, enabling them to navigate better in low light or complete darkness. You may have heard that whiskers are typically as wide as a cat’s body - this is actually a real fact.

Whiskers enable a cat to measure whether they can fit through a tight space. They also detect air currents, enabling cats to better identify nearby obstacles.

Hunting and Prey Detection

Whiskers play a key role in the hunting behaviour of cats. Those sensitive hairs detect movements and vibration from prey. They are particularly helpful for close range tracking, speeding up reflexes when prey is within paw reach.

Cats often close their eyes when delivering a killing bite to protect themselves from injury as they go in. Whiskers are important for guiding accuracy at this time.

Balance and Body Awareness

The vibrissae support proprioception, or what we might call “body awareness”. They play an important role in judging things like:

• Distances when jumping

• Coordination when carrying out complex tasks

Whiskers are not the primary balance system in cats - this is the responsibility of the inner ear. But those cute hairs on their faces and bodies play a supporting role in balance and coordination.

Protection and Reflexes

The whiskers above a cat’s eyes trigger a blink reflex when objects approach. This enables an advance warning for protection of the eyes, helping to avoid injury when hunting or fighting. This means whiskers offer added protection for the:

• Eyes

• Face

• Head

With this early warning system in place, cats have yet another skill that sets them apart in the animal kingdom.

Communication and Mood Signals

Whisker positioning also plays a role in reflecting a cat’s emotional state. They are a piece of the puzzle in determining how your cat is feeling. Check out the following signals:

• Forward: This means your cat is curious, alert or in hunting mode.

Relaxed: A signal that your cat is calm and content.

Pulled back: This typically suggests that the cat is feeling fearful or defensive.

Overall, the whiskers are part of a cat’s wider body language system. They have various telltale giveaways, including the position of the ears and tail. Add in the way the whiskers are pointing as part of that.

The Evolutionary Purpose of Cat Whiskers

Cats have evolved whiskers as part of their survival adaptation. This is clear, as there are key evolutionary advantages to them, such as:

• Improved hunting efficiency (particularly at night)

• Enhanced ability to move silently and precisely in darkness

The vibrissae are actually linked to modern felines’ wild ancestors. Wildcats rely heavily on whiskers in dense environments in order to avoid injury while navigating tight, dark or unfamiliar spaces.

Ultimately, whiskers are a refined sensory system that has developed over thousands of years. This is why whiskers are important to cats.

Whisker Fatigue - What It Is and Why It Matters

Whisker fatigue is a term we use to describe overstimulation of the whiskers from repeated contact. This can be detrimental to the cat’s well-being due to the important survival and instinctive benefits of the whiskers.

Signs that your cat is suffering from whisker fatigue include:

• Reluctance to eat or drink

• Pawing food out of bowls

• Stress or agitation

Of course, these things can be signs of other things too, so it’s important to monitor your cat’s health closely. This is where Litter Sense can help, as it detects irregularities in your cat’s urine for an early warning system that something might be wrong.

Common causes of whisker fatigue include deep or narrow food bowls and enclosed feeding spaces. We recommend that you use wide, shallow dishes and keep feeding areas as open and accessible as possible.

Can You Cut a Cat’s Whiskers?

Never cut or trim a cat’s whiskers. When you do this, you remove critical sensory input and may even cause disorientation and stress. These are not ordinary hairs, they are important tools for engaging with their surroundings.

When you cut a cat’s whiskers, you don’t cause it pain, but it is harmful. You will very likely cause increased anxiety for your cat by cutting its whiskers. There is no benefit to doing it, so leave those whiskers alone.

Do Cat Whiskers Grow Back?

It is natural for whiskers to shed and regrow as part of their cycles. However, it can take weeks to months for the whiskers to fully regrow, so it is essential that you allow it to happen naturally only.

Understand that shedding gradually is normal, but sudden or excessive whisker loss might indicate a health issue and it should be examined by a vet.

Fascinating Facts About Cat Whiskers

If you still aren’t convinced of just how amazing cat whiskers are, here are a few key facts to get your head around:

• Whiskers can move independently, controlled by muscles.

• They detect subtle vibrations in the air and ground nearby.

• Cats usually have 12 whiskers on each side of the muzzle.

• The carpal whiskers, on the backs of the front legs, help with climbing and handling prey.

• Whiskers function like a built-in GPS and radar system.

This is why we say a cat’s whiskers are its secret superpower, but cats have plenty of these.

Final Thoughts

Whiskers are essential sensory tools for cats - they are not just physical features. They play an important role in navigation, hunting, protection and communication. It is essential that you respect your cat’s whiskers as part of its overall well-being.