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Evolution | Definition, History, Types, Examples | Britannica 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 in successive generations
Evolution - Natural Selection, Adaptation, Genetics | Britannica Biological evolution is the process of change and diversification of living things over time, and it affects all aspects of their lives—morphology (form and structure), physiology, behaviour, and ecology Underlying these changes are changes in the hereditary materials
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]
Evolution - National Geographic Society Learn how early humans evolved from Homo habilis, to Homo erectus, to Homo sapiens and developed basic survival tools The story of human evolution began about 7 million years ago, when the lineages that lead to Homo sapiens and chimpanzees separated
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
Evolution and the history of life on Earth - Encyclopedia Britannica Life - Evolution, History, Earth: The evidence is overwhelming that all life on Earth has evolved from common ancestors in an unbroken chain since its origin Darwin’s principle of evolution is summarized by the following facts
Introduction to evolution - Wikipedia Evolution is the principal scientific theory that biologists use to understand life and is used in many disciplines, including medicine, psychology, conservation biology, anthropology, forensics, agriculture and other social-cultural applications
What is evolution? | Biological Principles - gatech. edu In more technical terms, biological evolution is defined as change in the gene pool of a population, measurable as changes in allele frequencies in a population over time In the earlier reading, we touched on evolution by natural selection and evolution by mutation