Sexual selection definitely produces some interesting effects, but it's still a form of natural selection. This article portrays it as the opposite. I think it's far easier to understand the outcomes of sexual selection if you realize that reproductive success is the only thing that matters. And the factors that influence reproductive success vary widely. It's important to not get eaten, die of disease, starve to death, or die young. But for organisms that reproduce sexually, it's even more important to be able to find a mate. An organism that lives twice as long but reproduces just once is far less successful than an organism that lives half as long but reproduces twenty times. The whole idea that sexual selection is somehow at odds with natural selection instead of just being one of many selection pressures, is deeply confused.
