Why headless males are better lovers
Sex and reproduction in the animal kingdom
by Monika Niehaus / Michael Wink
"Sex sells" also applies to evolution. Without sex, there is no genetic variation, and without genetic variation, there is no natural selection and evolution. When it comes to sex and reproduction, all animals have things in common, but there are also many variations. In this game of the sexes, everything revolves around the conflicts of interest between females and males, the diversity of mating systems, matriarchal and patriarchal communities and the securing of paternity, whether through beauty, song and dance or violence.