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. 2022 Nov 11;225(21):jeb244759. doi: 10.1242/jeb.244759

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© 2022. Published by The Company of Biologists Ltd

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.

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Fig. 4. — Changes in hearing threshold as a function of size and age. (A) Hearing threshold (dB re. 20 µPa, colour scale) as a function of size (SVL) and frequency. Data were smoothed using linear interpolation and boxcar averaging. (B) Median sound threshold (with 95% confidence intervals, CI) at 1600 Hz for the SVL groups. (C) Median sound threshold (with 95% CI) at 400 Hz for the SVL groups. (D) Audiogram of a small (15 mm SVL) and young (33 dpm) individual. (E) Audiogram of a large (68 mm SVL) and old (887 dpm) individual.