Vampire hearing and breathing-sound spectra. Absolute auditory thresholds averaged across three individuals of D. rotundus are shown as symbols and the fine line; error bars represent standard errors of the mean. Averaged breathing-sound magnitude spectra are shown by the strong black line; the strong grey lines again represent standard errors. This comparisons show that in D. rotundus, auditory sensitivity is well suited to detecting and analyzing breathing sounds.
Gröger and Wiegrebe BMC Biology 2006 4:18 doi:10.1186/1741-7007-4-18