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  1. 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 …

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

    Dec 2, 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 …

  3. Evolution 101

    Understanding Evolution offers comprehensive insights into the principles, mechanisms, and history of evolution to enhance knowledge of life's diversity.

  4. Evolution - National Human Genome Research Institute

    6 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 …

  5. 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.

  6. 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 …

  7. Scientists Say Evolution Works Differently Than We Thought

    3 days ago · Scientists say evolution works differently than we thought Date: December 25, 2025 Source: University of Michigan Summary: A major evolutionary theory says most genetic …