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. 2020 Jul 15;16(7):20200272. doi: 10.1098/rsbl.2020.0272

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© 2020 The Author(s)

Published by the Royal Society. All rights reserved.

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Figure 1. — Effect of lipopolysaccharide (LPS) on vampire bat contact calls. (a) Shows mean standardized LPS effect ± bootstrapped 95% confidence intervals (see electronic supplementary material, table S1) and data points for the mean peak frequency, mean duration, mean amplitude, the total number of contact calls produced and the total calling duration. Example spectrograms of a longer (b) and shorter (c) vampire bat contact call that also vary in peak frequency (darker regions show frequencies of greater relative amplitude).