Darwin's Theory of Evolution
Evolution of Populations
Classification
History of Life
Evolution
Unity and Diversity of Life
“Darwin's theory of evolution by natural selection is often called ‘the most important scientific idea that anyone has ever had.' Evolutionary theory provides the best scientific explanation for the unity and diversity of life. It unites all living things in a single tree of life and reminds us that humans are part of nature. As researchers explore evolutionary mysteries, they continue to marvel at Darwin's genius and his grand vision of the natural world.”