The 'cock-a-doodle-doo' one hears can get very loud indeed, with instances of over 100dB!
THE rooster, or"nature' alarm clock" and its crowing is as iconic as it is annoying – especially when one is trying to sleep past dawn.
So if the sheer intensity of a rooster's crow would be enough to put a human at risk of permanent hearing damage, why then, are there more deaf roosters walking the earth? A team of Belgian scientists discovered that roosters have unique ear canals that close when their beaks fully open – in other words, they have built-in earplugs!It is theorised that it was not necessary for hens to develop specialised ear physiology as their regular vocalisations are not self-damagingly loud.
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