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Ernst Heinrich Philipp August Haeckel (German: [ɛʁnst ˈhɛkl̩]; 16 February 1834 – 9 August 1919) [1] was a German zoologist, naturalist, eugenicist, philosopher, physician, professor, marine biologist and artist.
The theory of recapitulation, also called the biogenetic law or embryological parallelism—often expressed using Ernst Haeckel's phrase "ontogeny recapitulates phylogeny"—is a historical hypothesis that the development of the embryo of an animal, from fertilization to gestation or hatching (), goes through stages resembling or representing successive adult stages in the evolution of the ...
University Art Gallery, University of Massachusetts Dartmouth - An Ernst Haeckel exhibition from 2005 pairing prints from Kunstformen der Natur with modern sculptures. Kurt Stüber's Biolib - An online version of Kunstformen der Natur with scanned images of the 100 plates, accompanying descriptions, table of contents and supplemental pages (in ...
Biological illustration has traditionally employed the techniques of using carbon dust, color pencil, stipple pen and ink, lithography, watercolor and gouache; however, digital illustration has recently become more important in the field. Every professional scientific illustration begins with multiple rough sketches.
Evolutionary progress as a tree of life. Ernst Haeckel, 1866 Lamarck's two-factor theory involves 1) a complexifying force that drives animal body plans towards higher levels (orthogenesis) creating a ladder of phyla, and 2) an adaptive force that causes animals with a given body plan to adapt to circumstances (use and disuse, inheritance of acquired characteristics), creating a diversity of ...
Embryology theories of Ernst Haeckel, who argued for recapitulation [3] of evolutionary development in the embryo, and Karl Ernst von Baer's epigenesis. A recapitulation theory of evolutionary development was proposed by Étienne Serres in 1824–26, echoing the 1808 ideas of Johann Friedrich Meckel.
Haeckel's work (with some notable exceptions in embryology) is usually considered reasonably accurate. ernst Haeckel was a major 19th century biologist, though he's best known today for "ontogeny recapitulates phylogeny", a misguided notion.
According to Hogg, this new classification scheme prevented "the unnecessary trouble of contending about their supposed natures, and of uselessly trying to distinguish the Protozoa from the Protophyta". In 1866, Ernst Haeckel (1834–1919) proposed the name "Protista" for the primigenial kingdom and included bacteria in this third kingdom of life.
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