I’ve known of so many adoptees that were bats. Obviously their mothers were bats, got knocked up, and had children who were put up for adoption, and inherited their mother’s batiness.
Can confirm.
A family moved from up north to here in NC when I was in high school. Beautiful family - successful, wealthy, kind, hard working - except for their daughter who was my age. She ran around, got pregnant, stole, broke in people’s homes, lied and ended up in prison. She even stole a watch from me when she came over to see a movie. Her bf threw their child down the stairs causing him brain damage.
My heavens, I just looked her up on an inmate website and she has dozens of felonies- mostly B&E, possession of stolen goods, larceny. She served over 10 yrs in prison.
Definitely ‘nature’ not ‘nurture’.