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Encyclopediarecapitulationrecapitulation, theory, stated as the biogenetic law by E. H. Haeckel, that the embryological development of the individual repeats the stages in the evolutionary development of the species. For example, the beginnings of gill clefts appear in both humans and fish, but while they are elaborated and eventually function in the fish, in humans, except for the modified gill cleft that becomes the Eustachian tube, they disappear as the embryo develops. Though drastically modified and qualified since its proposal, the historical significance of this theory—“ontogenesis recapitulates phylogenesis”—is that with its appearance it lent support to the theory of evolution by seeming to corroborate it. The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved. More on recapitulation from Infoplease:
- Francis Maitland Balfour - Balfour, Francis Maitland Balfour, Francis Maitland, 1851–82, Scottish embryologist; brother ...
- biogenetic law - biogenetic law biogenetic law, in biology, a law stating that the earlier stages of embryos of ...
- Ernst Heinrich Haeckel - Haeckel, Ernst Heinrich Haeckel, Ernst Heinrich , 1834–1919, German biologist and ...
- Micah, book of the Bible - Micah Micah , 6th of the books of the Minor Prophets of the Bible, containing the oracles of the ...
- embryo - embryo embryo , name for the developing young of an animal or plant. In its widest definition, the ...
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