Anyone who has lived on or near a farm that raises chickens can relate. Roosters are very loud. And scientists have often wondered they seem to be immune to their own noise.
A new study finally reveals the answer, BGR.com reports: they have built-in earplugs.
Researchers from two universities in Belgium have just published a study in the journal Zoology that describes the mechanism that prevents roosters from damaging their own hearing.
The first step was to determine just how loud a rooster’s crowing actually is, and their data indicated an average intensity of over 100 decibels: roughly as loud as a car horn, and right at the “threshold of discomfort” for human hearing. It's definitely loud enough to cause deafness over time.
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