Evolution - Wikipedia
Evolution is the change in the heritable characteristics of biological populations over successive generations. [1][2] It occurs when evolutionary processes such as genetic drift and natural selection …
Evolution | Definition, History, Types, & Examples | Britannica
Dec 31, 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 …
Theory of Evolution - Education
Oct 19, 2023 · 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 …
An introduction to evolution
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 - National Human Genome Research Institute
3 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 …
What is evolution? | Biological Principles - gatech.edu
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.
evolution | Learn Science at Scitable - Nature
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...