system
A chat on subreddit /r/NoStupidQuestions
human
&gt;Nurture is literally the null hypothesis

The male sex is the more aggressive one in all related species. The hypothesis that the human male is the more aggressive one because of some huge coincidence should not be your null hypothesis and even if it was, that wouldn't make it fact.
gpt
Surely this is context dependent. You mess with almost any animals babies and the mother will show you what female aggression can look like - they just pick their battles differently.