• Thumbnail for Orthogenesis
    The term orthogenesis was introduced by Wilhelm Haacke in 1893 and popularized by Theodor Eimer five years later. Proponents of orthogenesis had rejected...
    57 KB (5,225 words) - 20:05, 25 February 2024
  • Thumbnail for Alternatives to Darwinian evolution
    theistic evolution could take other forms, such as the orthogenesis of Teilhard de Chardin. Orthogenesis or Progressionism is the hypothesis that life has...
    55 KB (5,843 words) - 02:56, 5 May 2024
  • extinction. Support for orthogenesis began to decline during the modern synthesis in the 1940s, when it became apparent that orthogenesis could not explain...
    34 KB (4,188 words) - 01:52, 21 April 2024
  • Thumbnail for Mutationism
    Mutationism, along with other alternatives to Darwinism like Lamarckism and orthogenesis, was discarded by most biologists as they came to see that Mendelian...
    51 KB (5,488 words) - 12:01, 23 March 2024
  • of orthogenesis and others in the late 19th century who at this period of time firmly believed that there was a direction in evolution. Orthogenesis was...
    31 KB (4,088 words) - 09:38, 5 May 2024
  • Thumbnail for Ludwig Hermann Plate
    Ludwig Hermann Plate (category Orthogenesis)
    evolution. He attempted to combine Lamarckism, natural selection and orthogenesis into a unified framework. Many of the factors of the modern synthesis...
    4 KB (453 words) - 06:01, 26 April 2023
  • Thumbnail for Evolution
    or an innate tendency for "progress", as expressed in beliefs such as orthogenesis and evolutionism; realistically however, evolution has no long-term goal...
    238 KB (24,700 words) - 04:40, 1 April 2024
  • Thumbnail for Carl Nägeli
    Carl Nägeli (category Orthogenesis)
    He rejected natural selection as a mechanism of evolution, favouring orthogenesis driven by a supposed "inner perfecting principle". Nägeli was born in...
    10 KB (1,016 words) - 19:26, 12 October 2023
  • Thumbnail for Lamarckism
    inheritance into his theory of evolution as a supplement to his concept of orthogenesis, a drive towards complexity. Introductory textbooks contrast Lamarckism...
    101 KB (10,509 words) - 13:33, 1 May 2024
  • Thumbnail for Missing link (human evolution)
    evolutionary theory of the Great Chain of Being and the now-outdated notion (orthogenesis) that simple organisms are more primitive than complex organisms. The...
    11 KB (1,272 words) - 12:21, 16 April 2024
  • Thumbnail for Chronospecies
    Valdiviathyris (no visible change since the Priabonian, 35 million years ago) Orthogenesis Howard, Hildegarde (1947). "An ancestral Golden Eagle raises a question...
    4 KB (430 words) - 04:29, 26 January 2024
  • Thumbnail for Creative Evolution (book)
    English translation appeared in 1911. The book proposed a version of orthogenesis in place of Darwin's mechanism of natural selection, suggesting that...
    3 KB (257 words) - 14:45, 27 October 2023
  • Thumbnail for Theodor Eimer
    Theodor Eimer (category Orthogenesis)
    1843 – 29 May 1898) was a German zoologist. He was a popularizer of orthogenesis, a form of directed evolution through mutations that made use of Lamarckian...
    8 KB (817 words) - 20:28, 12 October 2023
  • Zallinger. It has been viewed as a picture of the discredited theory, orthogenesis, that evolution is progressive. As such, it has been widely parodied...
    14 KB (1,656 words) - 16:24, 26 April 2024
  • Thumbnail for Michael Ruse
    unconstitutional. His 1996 book on the idea of progress in biology (orthogenesis), Monad to Man, had a mixed reception from other philosophers of biology...
    16 KB (1,761 words) - 05:48, 18 April 2024
  • Thumbnail for History of evolutionary thought
    acquired characteristics (neo-Lamarckism), an innate drive for change (orthogenesis), and sudden large mutations (saltationism). Mendelian genetics, a series...
    141 KB (16,362 words) - 18:46, 26 April 2024
  • metrics. Many biologists used to believe that evolution was progressive (orthogenesis) and had a direction that led towards so-called "higher organisms", despite...
    31 KB (3,692 words) - 18:56, 9 December 2023
  • Thumbnail for Irish elk
    smaller ancestors with smaller antlers, was taken as a prime example of orthogenesis (directed evolution), an evolutionary mechanism opposed to Darwinian...
    57 KB (6,374 words) - 17:21, 6 April 2024
  • Thumbnail for Lev Berg
    Lev Berg (category Orthogenesis)
    He is known for his own evolutionary theory, nomogenesis (a form of orthogenesis incorporating mutationism) as opposed to the theories of Darwin and Lamarck...
    15 KB (1,552 words) - 07:45, 9 April 2024
  • Thumbnail for Teleology in biology
    known as orthogenesis or evolutionary progress. Such goal-directedness implies a long-term teleological force; some supporters of orthogenesis considered...
    36 KB (4,036 words) - 09:30, 3 March 2024
  • Wisseman, Volker (ed.). Evolution on Rails Mechanisms and Levels of Orthogenesis. Universitätsverlag Göttingen. pp. 115–119. ISBN 978-3-938616-85-7. {{cite...
    8 KB (902 words) - 15:43, 31 August 2023
  • Thumbnail for Convergent evolution
    extinct species, but the genome will differ from the original species. Orthogenesis (contrastable with convergent evolution; involves teleology) However...
    56 KB (5,672 words) - 11:21, 19 April 2024
  • second law of thermodynamics." Conatus Emergence Joie de vivre Hylozoism Orthogenesis Parable of the Invisible Gardener Vis viva S. Atkinson ed., The Philosophy...
    6 KB (783 words) - 01:21, 20 January 2024
  • Thumbnail for Jean-Baptiste Lamarck
    complexifying force that drives animal body plans towards higher levels (orthogenesis) creating a ladder of phyla, and 2) an adaptive force that causes animals...
    48 KB (5,531 words) - 16:14, 9 April 2024
  • Thumbnail for Carcinisation
    convergent evolution Cretaceous crab revolution Mesozoic marine revolution Orthogenesis (comparable with convergent evolution but involving teleology) Baeza...
    13 KB (1,244 words) - 16:15, 7 April 2024
  • Thumbnail for Modern synthesis (20th century)
    variations of Lamarckism (inheritance of acquired characteristics), orthogenesis (progressive evolution), saltationism (evolution by jumps) and mutationism...
    74 KB (7,655 words) - 08:23, 4 May 2024
  • Thumbnail for Theistic evolution
    were used to describe different positions from the 1890s to the 1920s: "Orthogenesis" (goal-directed evolution), "nomogenesis" (evolution according to fixed...
    63 KB (7,566 words) - 13:04, 24 April 2024
  • Thumbnail for On the Origin of Species
    thought to arise through "jumps" rather than gradual adaptation, forms of orthogenesis claiming that species had an inherent tendency to change in a particular...
    164 KB (18,812 words) - 10:27, 27 April 2024
  • Thumbnail for Henry Fairfield Osborn
    Henry Fairfield Osborn (category Orthogenesis)
    selection, also known as the Baldwin effect. Osborn was a believer in orthogenesis; he coined the term aristogenesis for his theory. His aristogenesis was...
    28 KB (2,899 words) - 22:22, 24 January 2024
  • deliberately improved themselves through progressive inherited change (orthogenesis). The teleological belief went on to include cultural evolution and social...
    10 KB (1,203 words) - 00:41, 2 September 2023