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Question

Why can dogs hear frequencies more than 20kHz but not we ?


Solution

Dogs have much more sensitive hearing than humans, hearing sounds four times farther away than we can. They can hear higher frequency sounds, can more easily differentiate sounds and they can pin point the exact location of the sound

So why do dogs hear better than humans?

The ears of dogs are controlled by up to 18 muscles while humans are equipped with only six and can only move their ears slightly, if at all. Thus dogs can tilt and rotate their ears to funnel the sound into the inner ear more efficiently. In addition, the shape of some dog breeds ears are such that they amplify the sound. The canine ear canal is considerably longer than the human counterpart. Muscles allow it to finely tune the position of this inner ear canal so that it can localise a sound, hear it more accurately and from farther away.

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