recapitulation theory


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recapitulation theory

 
ontogeny recapitulates phylogeny, i.e., an organism, in the course of its development, goes through the same successive stages (in abbreviated form) as did the species in its evolutionary development.

re·ca·pit·u·la·tion the·o·ry

the theory formulated by E.H. Haeckel that people during their embryonic development pass through stages similar in general structural plan to the stages their species passed through in its evolution; more technically phrased, the theory that ontogeny is an abbreviated recapitulation of phylogeny.

recapitulation theory

re·ca·pit·u·la·tion the·o·ry

(rē'kă-pich'yū-lā'shŭn thē'ŏr-ē)
That individuals in their embryonic development pass through stages similar in general structural plan to the stages their species passed through in its evolution; more technically phrased, the theory that ontogeny is an abbreviated recapitulation of phylogeny.
Synonym(s): Haeckel law.

Haeckel,

Ernst, German naturalist, 1834-1919.
Haeckel gastrea theory - that the two-layered gastrula is the ancestral form of all multicellular animals. Synonym(s): gastrea theory
Haeckel law - the theory that ontogeny is an abbreviated recapitulation of phylogeny. Synonym(s): recapitulation theory

recapitulation theory

ontogeny recapitulates phylogeny, e.g. an organism, in the course of its development goes through the same successive stages (in abbreviated form) as did the species in its evolutionary development.
References in periodicals archive ?
A lingering criticism of Haeckel's recapitulation theory (Richardson et al.
Stanley Hall and the Boys' Club: Conservative Applications of Recapitulation Theory," Journal of the History of the Behaviorial Sciences 9 (1973): 140-147.
The scientific theories of the period lent credence to the notion that the composer's racial inheritance was the source of this supposed problem; recapitulation theory held that the early precociousness of members of "lower" races was actually the peak of their development.