The Pattern of Behaviour

Sexual selection is a very powerful biological force, even though biologists ignored it for almost a hundred years after charles darwin originally wrote about it. Men at the top of the hierarchy are much more likely to be reproductively successful than the men at the bottom. So you have twice as many female ancestors as you have male ancestors. And what happens is, any man who does reproduce, tends to reproduce more than once. But a bunch of them reproduce zero,. whereas so would be, the average man who reproduces has two children, and the average man who doesn't reproduce has zero."...