The Origin of Species by Means of Natural Selection: The Preservation of Favored Races in the Struggle for Life

The Origin of Species (or more completely, On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life) was first published in 1859. It is a scientific work by Charles Darwin which is considered to be the foundation of evolutionary biology. Darwin's book introduced the scientific theory that populations evolve over the course of generations through a process of natural selection.