In his groundbreaking book "On the Origin of Species", published in 1859, Darwin presented his theory of evolution by natural selection. This theory proposed that:
* Species are not fixed: They can change over time.
* Evolution occurs gradually: Over many generations, small variations accumulate, leading to significant changes.
* Natural selection is the driving force: Individuals with traits that make them better suited to their environment are more likely to survive and reproduce, passing on those advantageous traits to their offspring.
Darwin's work revolutionized our understanding of life on Earth, providing a scientific framework for explaining the diversity of species and their origins. Although Darwin's theory has been refined and expanded upon over the years, it remains the cornerstone of modern evolutionary biology.
