[Timbit]

Originally Posted by ChotooMotoo

It's what makes you male of female. See, your sex is determined by your chromosomes. So, two X make you female, and and XY mix make you male. This is important becuase XY and XX have different abilities. XY inseminate XX and then XX deliver the baby. So our species has two major splits, the male (ineminating) XY sex, and the female (inseminated carry the young) XX sex. There are creatures who reproduce asexually, meaning they don't have a defines biological sex, but humans are not that kind of creature.

I hope that answered your question

When I was a kid, I was talking to this lady in the park who had a dog. And she kept calling him "He" and I was confused and I asked her how you can tell if a dog is a he or a she. And she went like "The same way you tell with humans." And then this lightbulb lit up in my head and I got all embarrassed. Party for asking such a dumb question.

But I remember a time when I had no idea how you tell sex with humans too. My aunt asked us if we knew and my brother thought it had to do with earlobes somehow, but I had no idea at all. I thought maybe he was right.

Ah, childhood.