
We tend to think that sexual reproduction is a harmonious process in which males and females cooperate in order to increase the number of their descendants. Nevertheless, this is not always the case. During the reproductive process both males and females may have different reproductive interests; for instance, in some cases males may desert their offspring in order to mate again. This behaviour can be seen as disadvantageous for these males, since it may reduce the probability of survival of its offspring. However, these “disadvantageous” behaviours may be passed on from parents to offspring. The disparity in the reproductive interests between...