calling this evopsych is like calling freud the father of psychology
this is just them saying something that they like the sound of, humans are fundamentally an extremely social species and there are way more things that go into passing on our genes than just having kids; being celibate and just raising the kids of your siblings is more efficient at spreading your genes.
godiganbabay@ponder.cat 5 days ago
Wouldn’t surprise me. Unfortunately the study is behind a paywall.