According to zoologist Lucy Cooke, scientists have traditionally defined females in the animal kingdom with Victorian, sexist stereotypes. In her new book, “Bitch: On the Female of the Species,” Cooke debunks these outdated notions using examples throughout the animal kingdom of females breaking out of their passive roles and displaying aggression, competitiveness, and promiscuity.

We spoke with Lucy Cooke about looking at female animals with a new lens, one that shows that males and females are not as different as previously thought.