No one has contributed more to the understanding of human evolution than Charles Darwin, whose theory of evolution overturned the prevailing views of the Victorian era, fundamentally changing our perceptions of life on Earth, and continues to be challenged today by followers of all religions.

This edition publishes the chapters of Natural Selection from On the Origin of Species, which is one of the most significant books of all time. Utilizing a wealth of evidence, Darwin defends the idea (which others before him had also supported) that species evolve, additionally discovering a mechanism that makes such evolution possible.

He argues that life is like a tree where, as its roots grow, different branches form, which are the species that, over time, continue to diversify, leading to the creation of new species under the influence of certain limiting factors.

"In the one and a half centuries since the publication of On the Origin of Species, the theory developed in the book has been fully confirmed. While some questions may remain to be clarified, Darwin's theory of evolution provides us with a substantial conceptual and interpretative framework for understanding the natural world in a rational way, without resorting to myths." El Paίs