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A. Percentage of uncertainty responses (solid line), sparse responses (dashed line), and dense responses (dotted line) made by capuchin monkeys (Cebus apella) in Beran et al.’s (2009) Sparse-Uncertain-Dense task. B. Percentage of middle responses (solid line), sparse responses (dashed line), and dense responses (dotted line) made by capuchins in Beran et al.’s Sparse-Middle-Dense task.
