Origin of Species (book)

"On the Origin of Species" by Charles Darwin, published in 1859, is a foundational scientific work that introduces the theory of evolution by natural selection. Darwin explains how species evolve over time through small, incremental changes driven by environmental pressures, leading to the survival of the most adapted individuals. He provides evidence from diverse biological observations, emphasizing that all living organisms share common ancestors. The book revolutionized understanding of life's diversity, highlighting that species are not fixed but constantly changing, shaping modern biology and our understanding of the natural world.