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Evolution is the change in the heritable characteristics of biological populations over successive generations. 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.
Jun 3, 2024 · Evolution is the process of descent with modification that explains the origin and diversity of living things on Earth. Learn about the evidence, history, types, and examples of evolution from Britannica's experts.
Evolution 101. An introduction to evolution: what is evolution and how does it work? The history of life: looking at the patterns – Change over time and shared ancestors; Mechanisms: the processes of evolution – Selection, mutation, migration, and more; Microevolution – Evolution within a population; Speciation – How new species arise
Jun 3, 2024 · 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.
Jun 8, 2024 · Learn about the process by which human beings developed from now-extinct primates, and the fossil evidence and scientific models for this history. Explore the human lineage, the human family bush, and the human family tree.
Scitable provides an overview of evolution, genetics, and biodiversity, and how they shape ecology. Explore the mechanisms, examples, and applications of microevolution and macroevolution, and the role of molecular techniques in studying evolution.
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.
