Latest Reproductive success Stories
Most mammal reproduction studies aim to not only discover who the fathers are but also to learn why some males sire more offspring than others.
Think of them as a group of guys, hanging out together, but not spending much time with the ladies, nor getting much "action." Except these "guys" are forked fungus beetles.
Polygamy practiced by some 19th century Mormon men had the curious effect of suppressing the overall offspring numbers of Mormon women in plural marriages.
Since 1871, when Charles Darwin wrote The Descent of Man, it has been widely accepted that "Variability is the necessary basis for the action of selection."
In territorial species with polygynous mating systems, reproductive success reflects phenotypic variation.