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  2. Natural selection - Wikipedia

    en.wikipedia.org/wiki/Natural_selection

    The concept of natural selection originally developed in the absence of a valid theory of heredity; at the time of Darwin's writing, science had yet to develop modern theories of genetics. The union of traditional Darwinian evolution with subsequent discoveries in classical genetics formed the modern synthesis of the mid-20th century.

  3. Darwinism - Wikipedia

    en.wikipedia.org/wiki/Darwinism

    Charles Darwin in 1868. Darwinism is a term used to describe a theory of biological evolution developed by the English naturalist Charles Darwin (1809–1882) and others. The theory states that all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce.

  4. On the Origin of Species - Wikipedia

    en.wikipedia.org/wiki/On_the_Origin_of_Species

    Darwin's theory of evolution by natural selection, with its tree-like model of branching common descent, has become the unifying theory of the life sciences. The theory explains the diversity of living organisms and their adaptation to the environment.

  5. Charles Darwin - Wikipedia

    en.wikipedia.org/wiki/Charles_Darwin

    Darwin now had the framework of his theory of natural selection "by which to work", [104] as his "prime hobby". [110] His research included extensive experimental selective breeding of plants and animals, finding evidence that species were not fixed and investigating many detailed ideas to refine and substantiate his theory. [16]

  6. Publication of Darwin's theory - Wikipedia

    en.wikipedia.org/wiki/Publication_of_Darwin's_theory

    The publication of Darwin's theory brought into the open Charles Darwin's theory of evolution through natural selection, the culmination of more than twenty years of work. Thoughts on the possibility of transmutation of species which he recorded in 1836 towards the end of his five-year voyage on the Beagle were followed on his return by ...

  7. History of evolutionary thought - Wikipedia

    en.wikipedia.org/wiki/History_of_evolutionary...

    Darwin's theory, originally called descent with modification is known contemporarily as Darwinism or Darwinian theory. Unlike Lamarck, Darwin proposed common descent and a branching tree of life, meaning that two very different species could share a common ancestor. Darwin based his theory on the idea of natural selection: it synthesized a ...

  8. On the Tendency of Species to form Varieties; and on the ...

    en.wikipedia.org/wiki/On_the_Tendency_of_Species...

    The article was the first announcement of the Darwin–Wallace theory of evolution by natural selection; and appeared in print on 20 August 1858. The presentation of the papers spurred Darwin to write a condensed "abstract" of his "big book", Natural Selection. This was published in November 1859 as On the Origin of Species.

  9. Sexual selection in humans - Wikipedia

    en.wikipedia.org/wiki/Sexual_selection_in_humans

    The concept of sexual selection was introduced by Charles Darwin as an element of his theory of natural selection, [1] Sexual selection is a biological way one sex chooses a mate for the best reproductive success. Most compete with others of the same sex for the best mate to contribute their genome for future generations.