My sister has been an OBGYN for 15 years. She says based on her experience it is significantly harder for interracial couples to conceive. She says that the small portion of white-black mixed babies were conceived with extremely high frequency of sex. This info is difficukt to find online, but there’s nothing that explicitly says interracial couples and same race couples have the same fertility rates which tells me there’s something to it. There’s one NIH study I found that seemed to agree directionally.
Any studies out there to back this up? Anyone else have the same suspicions that this isn’t totally natural?