Sex at Dawn, written by Christopher Ryan and Cacilda Jethȧ, is an essay on the evolution of relationships from polygamy to monogamy. According to the authors, polygamy is leading to divorces and a change in the behaviors of males and females, both humans and primates. Different cultures believe that one should have intercourse with multiple men before marriage and others do not believe in such customs. Some cultures commit infanticide when a brave female is born into the family because the family prefers to have a male around, as males bring home what they need to survive, while females generally do not. Another topic covered in the paper is the transition from living in a community to living in a family unit. Finally, in some norms it is common for children to be unaware of who their parents are and for multiple family members or strangers to care for the children. There are many customs in the world that some see as strange, but it is normal for people who have grown up around these particular traditions. While reading this book, some of my opinions have changed on some topics. In the writing, the author talks about the transformation from polygamous relationships to monogamous relationships. The first chapter, under the subtitle "You Are What You Eat", If a native comes to the United States, some would think that the native is a strange person when they see him eating plants and shrubs from the bushes, but the native would see the people of United States as a strange people because Americans eat with cutlery while natives only use their hands. Why do Aboriginal people and Americans eat different foods? Americans and Aboriginal people eat the same food but in different forms. Aboriginal people ...... middle of paper ......ȧ The goal of writing this non-fiction excerpt was written to get readers to see the perspective of someone who is in a polygamous relationship, living in a community society and to make us understand the anomaly that surrounds us. Ryan and Jethȧ presented their argument by first opening with a simple way to get our attention and then the book concluded by showing readers how polygamy causes problems in a relationship. The authors started with the theme of “everyone is different” mentioning how some villagers would eat herbs, insects and animal parts that citizens today would not eat. The two authors then talked about community and the family unit within different cultures of the past and about being involved in a polygamous or monogamous relationship. Finally, the author brought the reader back to reality by summarizing the book in the last chapter.