In the book The Sixth Extinction written by Elizabeth Kolbert there are a lot of examples that are going on in the world today and also examples of things that started when the first human being was around. This book talks about how we are in the sixth mass extinction, and that is caused by humans. Overall the book goes chapter by chapter and talks about the different mass extinctions there have been, and how they were caused, but also the book talks about different species that have gone extinct and the reasons why. For example the book talks about golden frogs that are located in Panama and how they were seen everywhere located in El Valle de Anton, but they suddenly started disappearing. They were disappearing because of a chytrid fungis cause by humans, when humans travel they were bring this fungis to different places, this ended up killing the frogs (Chapter 1, Kolbert). That is just one example, but throughout the book Kolbert talks about different extinctions like this and what caused them. There are thirteen chapters in book The Sixth Extinction, and each one represents something different as the chapters are leading to the end where she points out that there could be hope. The first chapter in the book is called the Sixth Extinction and this chapter mainly talks about frogs and that is because they have been around longer than any other species some say. Frogs have been around for around 400 million years at least that is when they started crawling out of