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Variant of pedomorphosis2.

pae′do·mor′phism n.


(Zoology) the resemblance of adult animals to the young of their ancestors: seen in the evolution of modern man, who shows resemblances to the young stages of australopithecines
References in periodicals archive ?
Paedomorphosis affects agonistic visual signals of domestic dogs.
Thus "a species undergoing paedomorphosis will find itself in possession of a number of genes whose functions were to control characters which no longer appear, since the old adult characters will be lost in neoteny.
Tall non-storied rays composed chiefly or entirely of upright cells are indicative of paedomorphosis in wood of the genus.
Paedomorphosis in two small species of toothed whales (Odontoceti): How and why?
change in time or rate of events during development) and reveal whether the differences are the result of paedomorphosis or peramorphosis (Klingenberg, 1998).
Adaptive significance of facultative paedomorphosis in Tritums alpestris (Amphibia, Caudata): resource partitioning in an alpine lake.
These include heterochronic mutations that alter structures by changing growth rates, homeotic mutations that change the identities of whole body parts, and paedomorphosis, which converts juvenile stages directly to adult ones.
Facultative paedomorphosis refers to among-individual variation in metamorphosis: some individuals experience the typical metamorphosis as a juvenile whereas others become sexual mature and forego metamorphosis (i.
This suggest that paedomorphosis may have played an important role in calyptocephalellid diversification and speciation.