3 ms·

There was a lot more raping and pillaging back then, I assume. What's your point?

• wcoenen 6y ago
  The biological reason for having males and females is ultimately game-theoretical: males spend less energy on reproduction. Females spend more energy (pregnancy), but compensate by demanding higher evolutionary fitness from the males. The male strategy is high risk / high reward. During times of rapidly changing evolutionary pressure, there is a "winner takes all" effect. Perhaps we're going through such a period right now, just like 8000 years ago.