This abridged edition of Charles Darwin's seminal work, 'On the Origin of Species,' focuses on the core concept that revolutionized biology: natural selection. Darwin meticulously argues how organisms with heritable traits better suited to their environment tend to survive and reproduce, passing those advantages to their offspring. This concise volume presents the essential arguments from Darwin's masterpiece, making his groundbreaking ideas accessible to a modern audience and providing a foundational understanding of evolutionary theory, a cornerstone of modern science.