Eh, we where pretty long hunters and toughening up to kill that mammoth was pretty much part of all cultures who ate. The whole control on sexuality is a pure

Eh, we where pretty long hunters and toughening up to kill that mammoth was pretty much part of all cultures who ate. The whole control on sexuality is a pure human thing- we are the only species who hides when in heat the stimulus to the opposit sex. My personal conclusion was, that this allowed for more energy to be diverted to other "culture" practices - such as building houses and the likes..