Ungeborene Babys nutzen Gene vom Vater bis hin zu „ferngesteuerten“ Müttern für zusätzliche Nahrung

Yep and the hypothesis behind why humans menstruate is that we need more of a menstrual lining already in place to protect us from an abnormally parasitic placenta. Other mammals don’t start building a uterine lining before fertilization so they don’t have anything to shed.