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Suspect you have a
hearing problem?

Michaelides & Vermaas are trained in the prevention, diagnosis and non-medical treatment of hearing in adults.

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Your Hearing Care Provider
since 1992!

Michaelides & Vermaas has served the community of Klerksdorp since 1992. Let us assist you!

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Hear & experience all
the sounds of life!

We firmly believe that everyone's hearing is precious.
If you believe you have any hearing problems, let us assist you!

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Fun Hearing Facts Gallery

Animal, Insect & Human Fun Hearing Facts


The hearing organs of cicadas are located in their stomachs.


The hearing organs of crickets are located in their knees.


Male mosquitoes hear with thousands of tiny hairs that grow on their antennae.


 Fish do not have ears but they can hear. They “hear” pressure changes through the ridges on their bodies.


Snakes do not have ears, but their tongues are sensitive to sound vibrations.

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Parrots have a remarkable sense of hearing. In WW1 parrots were kept on the Eiffel Tower in Paris because they heard enemy planes approaching long before anyone else.

  • Dogs can hear much higher frequencies than humans, that is why they respond to “silent” dog whistles.
  • The ears of a dog are controlled by 18 muscles. This allows the ears to tilt and rotate.

A giraffe can clean its ears with its 21-inch tongue.


A cat has 32 muscles in each ear and each ear can turn independently.

Did you know that a male American bullfrog’s ear drum is on the outside of its head and is larger than its eye? The female American bullfrog’s ear drum is smaller or the same size as the eye. The bullfrog was announced in 2010 as the State Frog of Ohio. Bullfrogs only hear between a range of 100 to 3000 Hz compared to a human whose range is 20 to 20,000 Hz at birth. This means they probably use mostly their vision to catch flying insects, due to their limited hearing. Surprisingly, their calls to each other can be heard from miles away!

Last time I went to the park, I had to plug my ears while walking near a pond, because their singing was so loud! Some frogs can produce a sound around 95 decibels, which can be a dangerous loudness level. So my next question was, how do frogs not lose their hearing if they are around so much noise? The answer I found was that the hair cells in their ears regenerate themselves, unlike human hair cells, which are permanently damaged with noise exposure.

Fun Ear Facts

  • The smallest bones in the human body are the bones of the middle ear, the malleus, incus and stapes (the hammer, the anvil and stirrup).
  • The stapes is the smallest bone in the body and is only 2,8 mm long.
  • The ear has over 25 000 tiny haircells to help you hear the nuances of sound.

Middle Ear

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  • The whole area of the middle ear is no bigger than an M&M.
  • The smallest muscle in the body is the stapedius, located in the middle ear. It is only 1.4mm long and controls the smallest bone in the body, the stapes or stirrup bone.

Inner Ear

The cochlea (inner ear) is about the size of a pencil eraser.

Mabaan Tribe Ghana

The Mabaans, an African tribe living in Ghana, live in such solitude and quiet that they have extremely good hearing. They can hear a whisper across a baseball field, even when they are old.

Hearing & Hearing Loss

  • Hearing loss is the third most common health issue in older adults (after hypertension and arthritis).
  • 90% of hearing losses can be treated by using hearing aids.
  • 16% of doctors routinely screen for hearing loss.
  • On average it takes people 10 years to address their hearing loss.
  • Hearing threshold and the ability to localise sound sources are reduced under water.
  • Your ears don’t switch off during sleep, they continue to hear sounds.
  • We hear with the brain. The ear is simply the brain’s “microphone”.
  • Your ear drum is less than 17.5 mm in diameter. It moves less than a billionth of an inch when hearing.
  • Nobody knows how the brain tells the difference between high pitched and low pitched sounds, or between loud and soft sounds.
  • Your ear does more than just let you hear—it also gives you a sense of balance. Maybe you’ve noticed feeling dizzy if you’ve had an ear infection.
  • You get a new ear canal every year! The ear canal skin is constantly growing outward at a rate of 1.3 inches every year. If it didn’t fall off, you’d have a two foot string hanging out of your ear by the time you were 20!
  • When a person dies, hearing is generally the last sense to go. The first sense lost is usually sight, followed by taste, smell and touch.

The extent of hearing is the range of frequencies that a person or animal can hear.

  • Humans: 20 Hz – 20 000 Hz (significant variation occurs between people). People can also feel inaudible sound waves by physical vibrations (4 to 16 Hz)(depending on age and race).
  • Dogs: 40 Hz – 60 000 Hz .
  • Cat: 45 Hz – 64 000 Hz.
  • Bats: 20 Hz – 120 000 Hz.
  • Mouse: 1000 Hz – 91 000 Hz.
  • Dolphins: 0.25 Hz – 150 000 Hz.
  • Sonic – 20 Hz – 20 000 Hz – the extent that people can hear.
  • Ultrasonic – up to 90 000 Hz – dogs, bats and mice.
  • Infrasonic – from 0.25 Hz – snakes, whales and dolphins.


    Hearing Loss Demographics

    • The WHO estimates that there are 360 ​​million people worldwide hearing loss. Of these, 328 million adults and 32 million children. It involves more than 5% of the population.
    • In 1998 it was found that 4 million South Africans suffered from hearing loss.
    • About 10 million people in the UK are deaf or have severe hearing loss. It is one in seven people of the population (Source: Deafness Research UK). It is predicted that by 2015 there will be 14.5 million people with hearing loss.
    • Hearing loss affects one out of every six Australians. This means a total of approximately 3.55 million people. Three out of four Australians over the age of 70 suffered an hearing loss.
    • One in ten Americans has hearing loss. It is more than 28 million people. A study has shown that 65% of people with hearing loss are retarded.
    • In the EU about 55 million people between the ages of 18 and 80 suffer from hearing loss.
    • In North America, the number is estimated at 35 million.


      Hearing & Hearing Loss Quotes

      • The sense of audience is connected to the heart. Therefore, audio (speech and music) affects us directly (Katherine Le Mee).
      • Forgive me when you see that I withdraw while I would like to chat with you. My disability is double sad for me. I have to be alone, like someone who has been expelled. When I get close to people, I get anxious. I feel that someone may notice my condition. How humiliating when someone can hear me a whistle or a sheepdog who sings and I hear nothing! Such things make me desperate and could drive me easily to end my life. It was just my art that turned me away (Ludwig von Beethoven).
      • We spend one third of our lives with closed eyes because we sleep. This is about twenty years. In any second of those twenty years, your ears can command your eyes to open and search for the origin of a sound. When our eyes are open, our ears can still hear through walls and wherever the eyes can not see, and still ask the eyes to seek the sound (Jim S Davis II).
      • If I could only have one of my senses, I would choose to listen. Then I would not feel so alone (Helen Keller).
      • The easiest way to break your loved one’s resistance to hearing aids is to stop his ears (Dr Richard Carmen).
      • You must hear what you do not want to hear in order to know what you do not want to hear (Dr Gustav Mueller).
      • When someone in the family has a hearing loss, the whole family has hearing loss (Mark Ross PHD).
      • My wife says I have hearing loss. That’s what I think she said (Anonymous).
      • Blindness separates us from things but deafness separates us from people (Helen Keller).
      • Hearing loss is a bit terrible because it can not be restored (Pete Townshend of The Who).
      • Additional listening device is like eye sighters (Dr Cynthia Compton Connelly).
      • All the sounds of the earth are like music (Oscar Hammerstein II).
      • We should hear at least one song every day, read a good poem, see a beautiful picture and speak some meaningful words (Johann Wolfgang von Goethe).
      • An unhandled hearing loss is much more visible than hearing aids (Dr Sergei Kochkin).



Not Sure What You Need?

Simply give us a call and book an appointment for yourself. We are here to help! Michaelides and Vermaas, your hearing care provider since 1992.