Fig. 1
From: Female nursing partner choice in a population of wild house mice (Mus musculus domesticus)
An illustration of option female categories. Blue circles illustrate the focal female, either in a scenario where she opted to join another litter and to nurse communally (F1) or where she opted to nest alone and nurse solitarily (F2). All option females are shown as either non-chosen partners (NC, grey circles) or a chosen partner (C, green circle); the white circle represents a nest where no litter was present and would have been chosen under the scenario in F2