February 6, 2014
Female Mice Prefer Unfamiliar Male Songs
Females discern male mouse songs to avoid inbreeding
Female mice prefer songs of mice that are different from their parents when selecting a mate, according to a study published February 5, 2014 in PLOS ONE by Akari Asaba from the Azabu University, Japan, and colleagues. Furthermore, these preferences may be shaped by early social experiences with their fathers.
The authors found that female mice displayed an innate preference for male songs from different families, and this preference was influenced by the female's reproductive cycle and scent-based sexual cues from the male. Female mice raised by non-biological also preferred songs from other families, and no preference occurred when there was no father; these results indicate a possible learned behavior through exposure to the father's song. This is one of the first studies in mammals to demonstrate that male songs may contribute to kin recognition and mate choice by females in order to avoid inbreeding.
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