Burkhard Niederhoff recommends Different - Gender Through the Eyes of a Primatologist by Frans de Waal (2022).

“Sex and gender are the subject of a lively and sometimes heated debate. Cultural scholars tend to argue that differences between men and women are cultural and historical constructs, whereas scientists emphasize the role of genes. As a primatologist who has dedicated his life to studying the behaviour of apes and monkeys, Frans de Waal belongs to the latter camp. However, many of the observations he presents are quite astonishing and go against our expectations. Yes, the alpha male in a group of chimpanzees has worked his way to the top through fierce aggression, but he is typically also a peacemaker and does more grooming and consoling than anyone else. Unlike the patriarchal chimpanzees, the closely related bonobos are matriarchal; they also have a very interesting and indiscriminate sex life, which is not limited to the opposite sex. If you put a solitary baby rhesus monkey in a cage with an adult male and female, the male will ignore it and the female will pick it up. If, however, you put the baby in a cage with only an adult male, he will eventually look after it. And so on. A well-written, entertaining and instructive book.”