No human population to my knowledge is or ever has been monogamous. Social institutions and cultural ideals tend to be; sexual behavior isn't. Evolution doesn't care whether the 'polygamy' is ordained or endorsed. LOL
"No human population to my knowledge is or ever has been monogamous."
Well, then, what is this amorphous state of "non-polygamy," that hastened the evolution of humans, as opposed to chimpanzees, then, if it's not monogamy?
Or, perhaps the author is merely full of crap?
Humans have the ability to choose to be monogamous. Apparently the apes have never given the matter any thought ;-).