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Fig. 5. Average performance of the bats as a function of trial number over a
session in the experiment with no landmark at the hole. (A) The average
success of flying through the hole. (B) The average time spent on the trials.
(C) The average number of crashes into the net far away from the hole and (D)
the average number of crashes into the net around the hole. Values are means
+1 S.D.