Adult male house mice born to undernourished mothers are unattractive to oestrous females

摘要: In some mammal species, females in poor condition (e.g. nutritional state) give birth to a lower proportion of sons than do good condition. These skewed offspring sex ratios may be adaptive, because maternal can have strong negative impact on the success at intra-sexual competition. However, there is little information about being chosen as mates. Female house mice, Mus musculus, that are undernourished during gestation sons, and those smaller adults well-nourished females. The preferences oestrous for odours adult were well nourished tested, heavy light males. Oestrous preferred heavier Hence, not mates often reproductive potential results other evidence suggest secondary female mice adaptive.