F S vom Saal

TL;DR: The importance of developmental stage and the realization that exposure to a presumptive "safe" dose of chemical may impact a life stage when there is normally no endogenous hormone exposure are emphasized, thereby underscoring the potential for very low-dose EDC exposures to have potent and irreversible effects.

TL;DR: It is shown for the first time that fetal exposure to environmentally relevant parts-per-billion doses of bisphenol A, in the range currently being consumed by people, can alter the adult reproductive system in mice.

TL;DR: The intrauterine position phenomenon provides the only mammalian model for relating postnatal traits to concentrations of endogenous hormones to which individuals are exposed during fetal life and one specific hypothesis is that circulating estradiol may interact with testosterone in mediating some aspects of sexual differentiation in rodents and, thus, possibly in other mammals.

TL;DR: In male house mice this behavior is predictable and is modulated by learning, and committing infanticide can increase a male's reproductive success and in some situations may therefore be an adaptive behavior.

TL;DR: It is proposed that individual differences in reproductively-related characteristics based on prior intrauterine position may play a role both in the regulation of population size in rodents and in the reproductive success of individuals as changes in population size occur.