Re: Gender differences

Gerold Firl (
11 May 1995 13:15:44 -0700

In article <3ojlk6$> (Bryant) writes:
>Are humans considered sexually dimorphic in size. My subjective
>impression is that men are taller (not just more robust) than women. Is
>that generally accepted by anthropologists?
>If so, does it imply behavioral correlates (greater aggression in men)?

In _on human nature_, wilson briefly discusses human sexual dimorphism.

Dimorphism is best described with mass ratio, rather than height. Wilson
looked at the correlation between mass ratio and polygyny; gibbons occupy
one end of the spectrum, with a mass ratio very close to one and strong
monogamy, with gorillas at the other end. I don't remember the numbers, but
I would estimate that gorillas have a mass ratio of about 2, and something
like a 5 : 1 polygyny ratio.

Humans fall in-between. If I recall correctly, our position on the general
primate curve would predict a polygyny ratio of about 1.6.

This says nothing about aggression. Both gorillas and gibbons are
comparitively peaceful compared to humans and baboons.

Disclaimer claims dat de claims claimed in dis are de claims of meself,
me, and me alone, so sue us god. I won't tell Bill & Dave if you won't.
=-=-=-=-=-=-=-=-=-=-=-=-=-=---- Gerold Firl @ ..hplabs!hp-sdd!geroldf