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  1. Evolution - Wikipedia

    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 …

  2. Evolution | Definition, History, Types, & Examples | Britannica

    5 days ago · 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 …

  3. An introduction to evolution

    The definition Biological evolution, simply put, is descent with inherited modification. This definition encompasses everything from small-scale evolution (for example, changes in the …

  4. Theory of Evolution - National Geographic Society

    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 …

  5. What is the Theory of Evolution? Explained with Examples and …

    Apr 13, 2025 · But evolution is more than just biology’s guiding principle; it’s a story about time, change, and survival. Although the idea that life evolves wasn’t entirely new in the 19th …

  6. 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 …

  7. Evolution 101

    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 …

  8. 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...

  9. Evolution - Natural Selection, Adaptation, Genetics | Britannica

    5 days ago · 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, …

  10. EVOLUTION Definition & Meaning - Merriam-Webster

    Evolution is a process of continuous branching and diversification from common trunks. This pattern of irreversible separation gives life's history its basic directionality.