Overthrowing the patriarchy through ecstatic sex

Are the very foundations of evolutionary biology wrong? Charles Darwin's theory of sexual selection is infused with chauvinism, leading to the misconceptions that sex evolved solely for reproduction, where males are promiscuous, and females are chaste. But as the animal kingdom reveals, this is, in fact, wrong. Brian Gallagher talks with zoologist Lucy Cooke and author of "Bitch: On the Female of the Species" about bringing Darwin up to date.