https://english.elpais.com/science-tech ... abies.html
Daniel Mediavilla wrote: as well as a decrease in gray matter volume, an effect that had already been observed in pregnancy in previous studies
Pregnancy makes them dumber.
Daniel Mediavilla wrote: On this last point, the researcher notes that rats tend to avoid or even reject their pups
This fact could be abused for racist purposes, but we're not that kind of site.
So anyway, what is pregnancy game? I suppose it is getting her pregnant so she becomes dumber and you can control her better.
Worth a try.