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Letter "P" » Professor Per Ahlberg Quotes
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«It looks as if the first step in the evolution of the middle ear had nothing to do with hearing. Our forebears developed ears in order to breathe through them.»
Author: Professor Per Ahlberg
«Thus the transformation of the form of the blow-hole must have been caused by another driving force than the improvement of hearing.»
Author: Professor Per Ahlberg
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