Evolutionists are trying to figure out how the brain evolved, and how human nature can be explained. An important area of research is the differences between the sexes.

One cross-cultural study concluded: women seek money in a mate, men seek good looks.

Child abuse – step-children “are 100 times more likely to be fatally abused than a same-age child living with genetic parents.” The risk was independent of such factors as poverty, family size or even personality characteristics of the abusers.