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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 ...
His concept of recapitulation has been refuted in the form he gave it (now called "strong recapitulation"), in favour of the ideas first advanced by Karl Ernst von Baer. The strong recapitulation hypothesis views ontogeny as repeating forms of adult ancestors, while weak recapitulation means that what is repeated (and built upon) is the ...
Romanes' 1892 copy of Ernst Haeckel's allegedly fraudulent embryo drawings (This version of the figure is often attributed incorrectly to Haeckel.) [1]. Haeckel's illustrations show vertebrate embryos at different stages of development, which exhibit embryonic resemblance as support for evolution, recapitulation as evidence of the Biogenetic Law, and phenotypic divergence as evidence of von ...
Inheritance of acquired characteristics was part of Haeckel's recapitulation theory of evolution, which held that the embryological development of an organism repeats its evolutionary history. [ 111 ] [ 112 ] Critics of neo-Lamarckism, such as the German biologist August Weismann and Alfred Russel Wallace, pointed out that no one had ever ...
Von Baer denied any recapitulation of whole adult forms, though individual structures might be recapitulated. In developmental biology , von Baer's laws of embryology (or laws of development ) are four rules proposed by Karl Ernst von Baer to explain the observed pattern of embryonic development in different species .
The first half of the book explores Ernst Haeckel's biogenetic law (recapitulation)—the discredited idea that embryonic developmental stages replay the evolutionary transitions of adult forms of an organism's past descendants—and how this idea influenced thinking in biology, theology, and psychology.
The recapitulation theory of the atonement is a doctrine in Christian theology related to the meaning and effect of the death of Jesus Christ.. While it is sometimes absent from summaries of atonement theories, [1] more comprehensive overviews of the history of the atonement doctrine typically include a section about the “recapitulation” view of the atonement, which was first clearly ...
1790s: Recapitulation theory by Johann Friedrich Meckel and Carl Friedrich Kielmeyer [79] Late 1790s/early 1800s: Humboldtian science by Alexander von Humboldt [80] 1834: Humboldt penguin by Franz Meyen, after its initial discovery by Alexander von Humboldt [81] 1835: Cell division by Hugo von Mohl [82]