The average rooster crow is about 130 dB, about the same volume as standing 15m from a jet taking off. To prevent deafness from their own calls, roosters have evolved soft tissue that covers half of the eardrum while crowing.

Posted on January 22, 2018 by agogo22

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The average rooster crow is about 130 dB, about the same volume as standing 15m from a jet taking off. To prevent deafness from their own calls, roosters have evolved soft tissue that covers half of the eardrum while crowing.
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About agogo22

Director of Manchester School of Samba at http://www.sambaman.org.uk
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