For centuries, links between biology and behavior have been mined for ammunition in the gender wars. Western science has often tainted the discussion by skewing the norm toward men so that the biological underpinnings of their weaknesses and strengths are applauded while those of women are denigrated. Sex on the Brain is a chatty, fairly evenhanded report on a broad range of animal and
human studies intended to provide insight into hot-button issues such as aggression, nurturing behavior,
infidelity,
homosexuality, hormonal drives, and sexual signals. According to one researcher, "We inherit the behavior essentially of our past." Morning sickness, for example, which steers some women away
Deborah Blum was "raised in one of those university-based, liberal-elite families" and as such, was raised to believe that there were no differences between men and women. It wasn't until she had her