Fig. 5

Individual differences in side preference for Flippering pup behaviour. Boxplot of static acceleration in the Y-axis, as represented by the derivative Roll, with respect to individual for repeat capture females. Some females appear to show preference for being positioned on the right (values towards − 1) or the left (values towards + 1), indicating individual lateralization in a female–pup interaction (Flippering pup) and was found to be highly significantly repeatable. Those with (**) were found to spend significantly more time on their right (R) or left (L) side as determined through a one sample signed rank test