Fig. 5. Changes in the ‘feeding’ behaviour of mice fed the low-energy diet (A) from early pregnancy (N=15) and (B) from parturition (N=13). Observations made at night are identified by filled symbols; observations during the day are shown by open symbols. During both phases, and in both groups, the mice increased the amount of feeding behaviour as reproduction progressed. Each point represents the mean percentage time spent in the behaviour across all mice. Parturition is day 0.