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Ontogeny and Phylogeny

Release on 1985-01-171985-01-17 by Stephen Jay Gould
Ontogeny and Phylogeny

Author: Stephen Jay Gould

Publisher: Harvard University Press

ISBN: 9780674263963

Category: Science

Page: 520

View: 324

“Ontogeny recapitulates phylogeny” was Haeckel’s answer—the wrong one—to the most vexing question of nineteenth-century biology: what is the relationship between individual development (ontogeny) and the evolution of species and lineages (phylogeny)? In this, the first major book on the subject in fifty years, Stephen Jay Gould documents the history of the idea of recapitulation from its first appearance among the pre-Socratics to its fall in the early twentieth century. Mr. Gould explores recapitulation as an idea that intrigued politicians and theologians as well as scientists. He shows that Haeckel’s hypothesis—that human fetuses with gill slits are, literally, tiny fish, exact replicas of their water-breathing ancestors—had an influence that extended beyond biology into education, criminology, psychoanalysis (Freud and Jung were devout recapitulationists), and racism. The theory of recapitulation, Gould argues, finally collapsed not from the weight of contrary data, but because the rise of Mendelian genetics rendered it untenable. Turning to modern concepts, Gould demonstrates that, even though the whole subject of parallels between ontogeny and phylogeny fell into disrepute, it is still one of the great themes of evolutionary biology. Heterochrony—changes in developmental timing, producing parallels between ontogeny and phylogeny—is shown to be crucial to an understanding of gene regulation, the key to any rapprochement between molecular and evolutionary biology. Gould argues that the primary evolutionary value of heterochrony may lie in immediate ecological advantages for slow or rapid maturation, rather than in long-term changes of form, as all previous theories proclaimed. Neoteny—the opposite of recapitulation—is shown to be the most important determinant of human evolution. We have evolved by retaining the juvenile characters of our ancestors and have achieved both behavioral flexibility and our characteristic morphology thereby (large brains by prolonged retention of rapid fetal growth rates, for example). Gould concludes that “there may be nothing new under the sun, but permutation of the old within complex systems can do wonders. As biologists, we deal directly with the kind of material complexity that confers an unbounded potential upon simple, continuous changes in underlying processes. This is the chief joy of our science.”
Science
Ontogeny and Phylogeny
Language: en
Pages: 520

Ontogeny and Phylogeny

Authors: Stephen Jay Gould
Categories: Science
Type: BOOK - Published: 1985-01-17 - Publisher: Harvard University Press

“Ontogeny recapitulates phylogeny” was Haeckel’s answer—the wrong one—to the most vexing question of nineteenth-century biology: what is the relationship between individual development (ontogeny) and the evolution of species and lineages (phylogeny)? In this, the first major book on the subject in fifty years, Stephen Jay Gould documents the history of
Ontogeny and Phylogeny of the Vertebrate Heart
Language: en
Pages: 234

Ontogeny and Phylogeny of the Vertebrate Heart

Authors: David Sedmera, Tobias Wang
Categories: Science
Type: BOOK - Published: 2012-06-23 - Publisher: Springer Science & Business Media

This collection of reviews will be of considerable interests to biologists and MDs working on any aspect of cardiovascular function. With state-of-the-art reviews written by competent experts in the field, the content is also of interest for MSc and PhD students in most fields of cardiovascular physiology.
Morphology, Ontogeny and Phylogeny of the Phosphatocopina (Crustacea) from the Upper Cambrian Orsten of Sweden
Language: en
Pages: 236

Morphology, Ontogeny and Phylogeny of the Phosphatocopina (Crustacea) from the Upper Cambrian Orsten of Sweden

Authors: Klaus Muller, Dieter Waloszek, Andreas Maas
Categories: Science
Type: BOOK - Published: 2009-05-06 - Publisher: John Wiley & Sons

A detailed investigation of Phosphatocopina Fossils and Strata, Number 49: Morphology, Ontogeny, and Phylogeny of the Phosphatocopina (Crustacea) from the Upper Cambrian Orsten of Sweden presents a detailed look at Phosphatocopina through the rigorous lens of modern scientific study. Fully examined here in study form, this monograph details methods, materials,
Phylogeny, Ontogeny, and Gonad Microstructure of the Gobioid Fishes (Teleostei: Perciformes).
Language: en
Pages:

Phylogeny, Ontogeny, and Gonad Microstructure of the Gobioid Fishes (Teleostei: Perciformes).

Authors: Christine Elizabeth Thacker
Categories: Science
Type: BOOK - Published: 1998 - Publisher:

Books about Phylogeny, Ontogeny, and Gonad Microstructure of the Gobioid Fishes (Teleostei: Perciformes).
Ontogeny and Phylogeny of the Functions
Language: en
Pages: 195

Ontogeny and Phylogeny of the Functions

Authors: Verónica Guarner
Categories: Ontogeny
Type: BOOK - Published: 1996 - Publisher:

Books about Ontogeny and Phylogeny of the Functions

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