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  1. Darwin, evolution, & natural selection (article) | Khan Academy

    The mechanism that Darwin proposed for evolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more …

  2. Evolution and natural selection review (article) | Khan Academy

    Darwin's theory was based on the mechanism of natural selection, which explains how populations can evolve in such a way that they become better suited to their environments over time.

  3. Evidence for evolution (article) | Khan Academy

    Natural selection is a mechanism of evolution (something that can cause evolution to take place). In natural selection, a genetically specified trait that make organisms more fit, or better able to survive …

  4. Introducing Darwin and natural selection (article) | Khan Academy

    Darwin's theory of evolution by natural selection underlies all modern biology. It enables us to decipher our genes and fight viruses, as well as to understand Earth's fossil record and rich biodiversity.

  5. Evolution and natural selection review (article) | Khan Academy

    Darwin's theory was based on the mechanism of natural selection, which explains how populations can evolve in such a way that they become better suited to their environments over time.

  6. Evolution and natural selection (video) | Khan Academy

    Explore the fascinating concept of natural selection, a key driver of evolution. Learn how advantageous traits increase survival and reproduction chances, leading to population changes over time.

  7. Evolution & natural selection (video) | Khan Academy

    Variations, or differences in traits within a population, are important for the process of evolution because they provide the raw material for natural selection to act upon.

  8. Natural selection (article) | Khan Academy

    Review your understanding of natural selection in this free article aligned to NGSS standards.

  9. Natural selection (practice) | Khan Academy

    References Losos, Jonathan B., Thomas W. Schoener, and David A. Spiller. 2004. “Predator-Induced Behaviour Shifts and Natural Selection in Field-Experimental Lizard Populations” Nature 432 …

  10. Natural selection in populations (article) | Khan Academy

    You may have already seen natural selection as part of Darwin’s theory of evolution. In this article, we will dive deeper – in fact, deeper than Darwin himself could go. We will examine natural selection at …