Download or read book On Natural Selection written by Charles Darwin and published by Penguin UK. This book was released on 2004-09-02 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published amid a firestorm of controversy in 1859, this is a book that changed the world. Reasoned and well-documented in its arguments, it offers coherent views of natural selection, adaptation, the struggle for existence, survival of the fittest, and other concepts that form the foundation of evolutionary theory.