Figure S2 from Perception of contextual size illusions by honeybees in restricted and unrestricted viewing conditions

Individual and pooled performance of bees during the three tests in experiment 1. For the learning test, performance is measured by proportion of choices for the correct size option; for the transfer tests, performance is measured by proportion of choices for the illusionary option. Blue dots indicate each individual bee's performance in the test and red dots represent the means for each test. The size of the red dot indicates the SEM. Dashed line at 0.5 indicates the chance level performance. Ten bees were used for each test in each experiment.