I've been lurking for about 7 months now, and I'm confident that I have at least a basic understanding of alpha and beta archetypes, and omega is self explanatory, but I'm confused by delta, gamma, and sigma. Even when they're mentioned in a post they're not really described, and a Google search turned up the same article about the "socio-sexual hierarchy" cut and pasted into multiple blogs; an article which either was ignorant of or ignored evolutionary mating strategies. So my question is this: What are delta, gamma, and sigma males, and how do they fit in with TRP philosophy?