What bothers me about the evolution of Man

There are several areas of human anatomy that are larger than average for mammals (proportional to our size), and I believe they're all primarily due to sexual selection.--Percy

I call it the Percy Theory of the Three B's: brains, boobs, and boners. They drove human evolution by way of sexual selection. Boobs and boners are about sexual attraction, while brains are about increasing socialization abilities and the resulting improvement in sexual opportunities. Physical and social qualities determine who is desirable (dominant), and those best able to wend their way into the hearts of desirable partners contribute more of their genes to succeeding generations. The most successful are also the most dominant. Human brains, boobs and boners are all the result of a positive feedback relationship between physical and mental qualities and sexual selection.I haven't had time to vet my theory in the scientific arena, but I'm sure it's correct. --Percy

"His mouth became the Brahmin, his arms were made Kings. What were his thighs, they were made into the merchants, and from his feet were the servants born." Verse 12, Purusha SuktamShould we now discuss which sacred text is correct?Or could you maybe respect the fact that this is a science thread?--Percy