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Ontogeny and phylogeny. Learning about phylogeny from ontogeny. By studying ontogeny (the development of embryos), scientists can learn about the evolutionary history of organisms. Ancestral characters are often, but not always, preserved in an organism’s development.
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 ).
- United States
- Stephen Jay Gould
- English
Ontogeny and Phylogeny. Stephen Jay Gould. Paperback. ISBN 9780674639416. Publication date: 01/17/1985. “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 ...
Ontogeny is the growth (size change) and development (structure change) of an individual organism; phylogeny is the evolutionary history of a species. Haeckel claimed that the development of advanced species passes through stages represented by adult organisms of more primitive species. [10]
Ontogeny is the developmental history of an organism within its own lifetime, as distinct from phylogeny, which refers to the evolutionary history of a species. Another way to think of ontogeny is that it is the process of an organism going through all of the developmental stages over its lifetime. The developmental history includes ...
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
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...
