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Your dog's hearing is amazing!

15/8/2018

1 Comment

 
Did you know a dog can hear frequencies of 2-47 Hertz while we can only heart 1-19Hertz.
That’s why they hear that visitor arriving at the door and we’re left wondering how!
Hearing is an amazing thing! Perception of sound has been shown to start as early as 10-11 days in puppies, with development of normal hearing of environmental sounds in dogs by 4-5 weeks of age.
The most amazing thing about hearing is the way we receive it and we completely take it for granted! Did you know the sound wave passes into the ear canal (external ear canal), hits a membrane (the tympanic membrane) which has three little bones on the other side (ossicles) inside the middle ear. Those little bones pass the message to the inner ear which is full of a fluid substance called perilymph. The sound waves move through the fluid and into little spiral canals, that are covered in hairs. Those little hairs (called stereocilia) vary in length and position along the canals. The hairs bending causes a nerve impulse to be sent via nerves. And that’s just the bit inside the ear! There are also the nerves and receptors in the brain that allow the dogs and us to interpret what we heard. Amazing!
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1 Comment
Andrea Beckett link
16/2/2021 02:55:33 pm

Thanks, great blog post

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