Does sexual dimorphism in humans prove that monogamy is unnatural?
Actually, in humans sexual dimorphism is very low (look at gorilla and chimpanzee sizes…the males are much larger than the females). It has been shown that in species with less sexual dimorphism, there is more of a trend of monogamy with both parents caring for the offspring (this is found in birds too, so it is not only limited to mammals). So even if ‘love’ and ‘marriage’ did not have a role in humans, I do believe that humans would still lean toward monogamy, with the ultimate goal of mutual care of offspring. That being said, we cannot discount the role that culture now plays in human societies. In the societies that practice polygyny (many wives), polyandry (many husbands), or polygamy (many spouses) (all of which occur in other non-human species too!), there are cultural reasons behind their practices. I believe in cultural relativity (that we should understand other cultures’ practices from the viewpoint of their own culture, not ours), and if cultural relativity is used, ther
