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BBC Earth (Asia) - - Update -

The av­er­age sound level, in deci­bels, of a rooster’s crow. This is equiv­a­lent

to a jet tak­ing off at a dis­tance of 15 me­tres. X-ray images have shown that roost­ers ap­pear to have spe­cial flaps in their ears that par­tially close off the ear canals when they crow, to

pro­tect their hear­ing.

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