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. 2021 Jan 18;24(2):299–309. doi: 10.1007/s10071-021-01473-9

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Fig. 3 — The duration of stranger-directed behaviors. Black squares: medians; boxes: quartiles; thin vertical lines: minimum and maximum values. Horizontal lines with asterisks indicate significant post hoc differences. F- happiness = females in the happiness condition; F-fear = females in the fear condition; F-control = females in the control condition; M-happiness = males in the happiness condition; M-fear = males in the fear condition; M-control = males in the control condition. Note that the patterns of males and females are different, with females mirroring more closely the general pattern showed in the top right insert