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Fig. 3. Echo suppression in the echolocating bat Megaderma lyra. The figure shows the percentage decisions towards the first of two reflections plotted against the lead-lag delay. Chance performance is represented by the horizontal broken line at 50%; significant performance is represented by the dotted line at 75%. The bats' performance in the lead-only trials is shown by the short horizontal lines. A-E show data for individuals; F shows the mean performance of all bats. The two data plots in A,C,E show a first (solid line) and second (broken line) data acquisition of these bats. Only one of five M. lyra individuals spontaneously showed significant preference (>75%) for the first of two reflections (C; first acquisition).





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