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Ontogeny and Phylogeny is a 1977 book on evolution by Stephen Jay Gould, in which the author explores the relationship between embryonic development ( ontogeny) and biological evolution ( phylogeny ). Unlike his many popular books of essays, it was a technical book, and over the following decades it was influential in stimulating research into ...
Thus its development would reiterate its evolutionary history — ontogeny recapitulating phylogeny. This idea is an extreme one. If it were strictly true, it would predict, for example, that in the course of a chick’s development, it would go through the following stages: a single celled organism, a multi-celled invertebrate ancestor, a fish, a lizard-like reptile, an ancestral bird, and ...
A classic book that explores the history and theory of the relationship between individual development and evolution. Stephen Jay Gould challenges the recapitulation hypothesis and offers a functional interpretation of phylogenetic changes in developmental processes.
e. The theory of recapitulation, also called the biogenetic law or embryological parallelism —often expressed using Ernst Haeckel 's phrase " ontogeny recapitulates phylogeny "—is an historical hypothesis that the development of the embryo of an animal, from fertilization to gestation or hatching ( ontogeny ), goes through stages resembling ...
1 janv. 1986 · After a short historical introduction, the principal notions used to study the connections between ontogeny and phylogeny are desribed. The three fondamental standards (shape, age, size) upon which are made ontogenetic comparisons are defined and discussed.
21 juil. 2009 · Background Karl Ernst Von Baer noted that species tend to show greater morphological divergence in later stages of development when compared to earlier stages. Darwin originally interpreted these observations via a selectionist framework, suggesting that divergence should be greatest during ontogenic stages in which organisms experienced varying 'conditions of existence' and opportunity for ...
Ontogeny and Phylogeny Stephen Jay Gould In the first major book on the subject in fifty years, Stephen Jay Gould documents the history of the idea that "ontogeny recapitulates phylogeny." He shows how the theory influenced educa-tion, criminology, psychoanalysis, and racism; and argues that it collapsed because the rise of
