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 …

3 days ago · 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 …

Oct 19, 2023 · The theory of evolution is a shortened form of the term “theory of evolution by natural selection,” which was proposed by Charles Darwin and Alfred Russel Wallace in the nineteenth century.

How does evolution lead to the tree of life? How does evolution work? How does evolution work on a small scale? What are species anyway, and how do new ones evolve? How does evolution work on …

2 days ago · Evolution, as related to genomics, refers to the process by which living organisms change over time through changes in the genome. Such evolutionary changes result from mutations that …

Apr 20, 2026 · Evolution is the process of heritable change in populations of organisms over multiple generations. Evolutionary biology is the study of this process, which can occur through mechanisms …

Because the definition of evolution is change in the heritable characteristics of a population over generations, evolution can occur by means other than natural selection.

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