Piezoelectric Property of Otoliths

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Science  20 Oct 1967:
Vol. 158, Issue 3799, pp. 368-370
DOI: 10.1126/science.158.3799.368


Otoliths of two species of bony fishes have been found to be piezoelectric. Hence, in theory, they constitute a mechanism for depth perception or frequency analysis of sound waves, or both.