mojorising said:
Interesting point Angra but there are 2 problems.
1. Gorillas do not have the evolved powers of rational abstract thought that humans do.
2. The body size difference between males and females indicates how possessive males will be of females.
e.g.
Bonobos male and female are the same size - sex is social
Humans male is 20% bigger than females - sex is pair bonding
Gorillas male is 40% bigger than females - sex is groups of females like a harem with the boss male
Those aren't problems.
Regarding 1., gorillas do have significant capabilities for reasoning; they're capable of inventing and making basic tools, copying others as they use them, engaging in complex social interactions, and so on. Granted, they don't have the abstract reasoning powers that humans have, but that's not the issue. The issue is that the considerable reasoning powers that they did develop are at least as present in females as they are in males, despite the fact that females don't have that much of a choice on the matter. The same applies to baboons or mandrills, which are less intelligent than gorillas, but the point about the lack of a superior intelligence in males remains.
So, the point is that there seems to be no clear link between the development of greater intelligence in one of the sexes and the choices females may have.
Your point that humans have much greater evolved capabilities for abstract thought does not affect my objection.
From a different perspective, a question would be: why would you conclude that because the reasoning capabilities of women are no lesser than those of men, they had a significant choice of sexual partners?
After all, it seems that similar levels of intelligence between sexes seem to develop regardless of who the degree of choice.
Regarding 2, that's not a problem for my objection, since my objection was about your previous argument. A sexual dimorphism argument is a different matter. In that regard, humans would seem to be more like halfway the differences in we observe in monogamous and polygamous species (so, your point about the 20% is mistaken; if we go by differences in body size, humans are halfway between monogamous and polygamous. In bonobos, females are in charge due to social organization).
But I don't see any of this as particularly relevant to the matters under discussion (see my previous post
here)