On the Origin of Species by Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life. (2nd edition)

First published in the mid‑19th century, this groundbreaking treatise invites listeners into a careful examination of how living things change over time. It begins with detailed observations of domesticated plants and animals, showing how selective breeding can produce striking new forms. From these familiar examples, the author moves toward a broader inquiry into the natural variations that occur without human direction.

The core of the work explains the “struggle for existence”—the constant competition among organisms for limited resources—and how this pressure gives rise to natural selection. By outlining the mechanisms of inheritance, adaptation, and the gradual accumulation of small differences, the author builds a compelling case for a common ancestry of all species. Though written in a Victorian scientific style, the ideas continue to shape modern biology and provoke thoughtful discussion about humanity’s place in the natural world.