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  2. Natural selection - Wikipedia

    en.wikipedia.org/wiki/Natural_selection

    Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, ...

  3. Evolution - Wikipedia

    en.wikipedia.org/wiki/Evolution

    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]

  4. Selection (evolutionary algorithm) - Wikipedia

    en.wikipedia.org/wiki/Selection_(evolutionary...

    Selection has a dual purpose: on the one hand, it can choose individual genomes from a population for subsequent breeding (e.g., using the crossover operator). In addition, selection mechanisms are also used to choose candidate solutions (individuals) for the next generation. The biological model is natural selection.

  5. Speciation - Wikipedia

    en.wikipedia.org/wiki/Speciation

    [1] [2] [3] Charles Darwin was the first to describe the role of natural selection in speciation in his 1859 book On the Origin of Species. [4] He also identified sexual selection as a likely mechanism, but found it problematic. There are four geographic modes of speciation in nature, based on the extent to which speciating populations are ...

  6. Abiogenesis - Wikipedia

    en.wikipedia.org/wiki/Abiogenesis

    They may have lived as early as 4.28 Gya (billion years ago), relatively soon after the formation of the oceans 4.41 Gya, not long after the formation of the Earth 4.54 Gya. [ 78 ] Early micro-fossils may have come from a hot world of gases such as methane, ammonia, carbon dioxide, and hydrogen sulfide , toxic to much current life. [ 227 ]

  7. Tinbergen's four questions - Wikipedia

    en.wikipedia.org/wiki/Tinbergen's_four_questions

    Evolution captures both the history of an organism via its phylogeny, and the history of natural selection working on function to produce adaptations. [6] There are several reasons why natural selection may fail to achieve optimal design (Mayr 2001:140–143; Buss et al. 1998).

  8. Outline of evolution - Wikipedia

    en.wikipedia.org/wiki/Outline_of_evolution

    Artificial selection – Breeding used to develop desired characteristics; Natural selection – Mechanism of evolution by differential survival and reproduction of individuals Sexual selection – Mode of natural selection involving the choosing of and competition for mates; Mutation – Alteration in the nucleotide sequence of a genome

  9. Alternatives to Darwinian evolution - Wikipedia

    en.wikipedia.org/wiki/Alternatives_to_Darwinian...

    Some who came to accept evolution, but disliked natural selection, raised religious objections. Others felt that evolution was an inherently progressive process that natural selection alone was insufficient to explain. Still others felt that nature, including the development of life, followed orderly patterns that natural selection could not ...

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