The book name in which Darwin published the theory of evolution is:

Explanation

The Origin of Species" is a book written by Charles Darwin and published in 1859. It is considered one of the most important works in the history of science, as it presented the theory of evolution by natural selection. The book argues that all species of life have descended over time from common ancestors, and that the process of natural selection is the primary mechanism by which this evolution occurs. Natural selection is the process by which certain traits that help an organism survive and reproduce are passed on to future generations, while traits that are not beneficial are not passed on. Darwin's theory of evolution by natural selection was groundbreaking at the time, and it remains a cornerstone of modern biology.