Summary Darwin is ongoing with his exploration. He recognizes that only the fittest will survive. On their voyage home after 5 years, Darwin starts to draw a conclusion about his experiences and what he will going to do professionally when back in England. At the end, the differences between FitzRoy and Darwin regarding religion and rational understanding will be ongoing. But they agree that FitzRoy will take chance to take over parts of Darwin's travel report in his one. Darwin's patrons at Cambridge introduce him into sciences. His considerations lead him to the question, what was the origin of living and what does the development of species cause. Beside the working of his travel journal, he works on a scientific study of the advantages and disadvantages of marriage. At the end he marries the daughter of his uncle.

• Biography
• History