When chimps threaten, they open their mouth and show their teeth. It's a little like waving a knife in front of you. It's very primitive, and therefore bizarre.
Helen FisherAnthropologists have found evidence of romantic love in 170 societies. They've never found a society that did not have it.
Helen FisherAs societies continue to loosen their standards regarding what is appropriate female and male behavior, I think we are going to realize we have not only underestimated women, but also men.
Helen Fisher