In the novel there are many researches and articles on the relationship between man and nature and how nature has power over man, such as fire and storm on Bathsheba's property, or Gabriel's loss of his sheep to the dog, which is part of nature. But the thesis of this article is different. Analyzes the new basis of Darwin's theory of natural selection in both cultural and biological terms. From a biological point of view, Darwin claims that the bad gene dies and the good one survives. Socially, Darwin argues that survival is one that challenges others and assimilates to time and environment. To demonstrate the use of Darwin's biological theory this article refers to Gabriel Oak's two dogs, and also to the different genes of Bathsheba and Fanny. In cultural selection, Bathsheba is the one who shows rapid changes and adaptations with the environment. Then there is the sexual selection demonstrated by Bathsheba when she tries to choose the best suitor. There is the power of wealth, weapons, intellect and performance that differentiates Bathsheba's three suitors and makes them each win at the