Actually I mentioned this too. I compared humans to Birds. A female bird is a drawn to a male bird by way of his signing and nest making. A strong nest means that he can protect her and the baby bird. That male bird will reproduce. Humans for the most part don't do this. There are societal elements to human mating. People that wouldn't be able to have offspring in a more natural world now do.
You can't be serious.
Chicks are drawn to certain attributes.