Are size, variability and allometry of the baculum in relation to body length signals of a good condition in male weasels Mustela nivalis

In this study we investigated the allometry and variation in the baculum of the weasel Mustela nivalis and compared it with head-and-body length, which is not involved in reproduction. The females of many mammalian species select mates in part during intromission and evaluate attributes of the penis that are informative in regard to a male’s size or other characteristics. If females benefit by mating with large males by estimation of the size of...