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Evolution | Definition, History, Types, Examples | Britannica evolution, theory in biology postulating that the various types of plants, animals, and other living things on Earth have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations
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 natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations [3]
Theory of Evolution - Education 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
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 | 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