Natural Selections

Do you know the rules of natural selection? Well, I saw this documentary which says that we somehow, when choosing something tends to be of something which is close to yourself. That is to say,

1. Human will choose human, a bee, another.
2. A white man will choose a white wife, or a chinese man a chinese wife (of course there are exceptions to the rule)
3. A man, a woman (of course this may not be true all the time)

We were talking this afternoon during lunch, that is, my colleagues and I about the other two staff (a guy and a lady) who are doing sales. Well, our boss from day one has been telling everyone how the male salesman 'IS THERE', understand everything he had said, bla bla bla.... while putting the lady salesperson down. But, guess what, the lady salesperson has been topping the sales the last month.

This makes me to believe that hey, our clients who are many males proofed that they are straight and they used the rules of natural selection!