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  1. 7. Mai 2024 · Alfred Russel Wallace, eminent naturalist and co-discoverer of the principle of natural selection, was a major participant in the antivaccination campaigns in late 19th-century England. Wallace combined social reformism and quantitative arguments to undermine the claims of pro-vaccinationists and had a major impact on the debate ...

  2. Vor 2 Tagen · The Reader also failed, despite its broader appeal which included art and literature as well as science. The periodical market was quite crowded at the time, but most probably the critical factor was Huxley's time; he was simply over-committed, and could not afford to hire full-time editors. This occurred often in his life: Huxley took on too many ventures, and was not as astute as Darwin at ...

  3. 20. Mai 2024 · Modern synthesis (20th century) Several major ideas about evolution came together in the population genetics of the early 20th century to form the modern synthesis, including genetic variation, natural selection, and particulate ( Mendelian) inheritance. [1] This ended the eclipse of Darwinism and supplanted a variety of non-Darwinian theories ...

  4. Vor 9 Stunden · A photograph of Alfred Russel Wallace (1823–1913) taken in Singapore in 1862 An 1855 paper on the "introduction" of species, written by Alfred Russel Wallace , claimed that patterns in the geographical distribution of living and fossil species could be explained if every new species always came into existence near an already existing, closely related species. [51]

  5. 9. Mai 2024 · Patrick Matthew, Scottish landowner and agriculturalist best known for developing an early description of the theory of evolution by natural selection. His ideas, published within a book on forestry in 1831, bore similarities to concepts developed by Charles Darwin and Alfred Russel Wallace published decades later.

    • John P. Rafferty
  6. 2. Mai 2024 · AUTHORSHIP (AUTEUR THEORY, la politique des auteurs) An approach to film analysis and criticism that focuses on the ways in which the personal influence, individual sensibility, and artistic vision of a film’s director might be identified in their work (see also direction). Before the 1950s, serious film criticism tended to focus on questions ...

  7. 15. Mai 2024 · Charles Darwin and Natural Selection. The actual mechanism for evolution was independently conceived of and described by two naturalists, Charles Darwin and Alfred Russell Wallace, in the mid-nineteenth century. Importantly, each spent time exploring the natural world on expeditions to the tropics.