Fig 5. Box and whiskers plot showing duration of gaze alternation behaviour by pups, juveniles and adults.

Duration of gaze alternation was significantly less prolonged in pups than in juveniles (Mann Whitney U test, p = 0.003) and adults (Mann Whitney U test, p = 0.04). Boxes represent interquartile range, horizontal bars within boxes indicate median values, and whiskers represent the upper range of the data. “a” and “b” indicate significant differences among the categories.