The scientific theory of evolution by natural selection was conceived independently by two British naturalists, Charles Darwin and Alfred Russel Wallace, in the mid-19th century as an explanation for …

Dec 2, 2025 · Evolution, theory in biology postulating that the various types of living things on Earth have their origin in other preexisting types and that the distinguishable differences are due to modifications …

Darwin and a scientific contemporary of his, Alfred Russel Wallace, proposed that evolution occurs because of a phenomenon called natural selection. In the theory of natural selection, organisms …

Evolution helps us to understand the living world around us, as well as its history. Biological evolution is not simply a matter of change over time.

Evolution is a process of continuous branching and diversification from common trunks. This pattern of irreversible separation gives life's history its basic directionality.

Apr 5, 2025 · In the world of science, few ideas have had as profound an impact on human understanding as Charles Darwin’s theory of evolution by natural selection. In the years since …

Evolution is a process that results in changes in the genetic material of a population over time. Evolution reflects the adaptations of organisms to their changing environments and can result in...

Learn all about the history of life with these resources and articles on natural selection, genetics, cell types, Charles Darwin, and more.

Dec 2, 2025 · Evolution can be seen as a two-step process. First, hereditary variation takes place; second, selection is made of those genetic variants that will be passed on most effectively to the …

Dec 9, 2025 · Columnist and Humans 2025 was chock full of exciting discoveries in human evolution From an incredible series of revelations about the ancient humans called Denisovans to surprising …