Peramorphosis

Peramorphosis

In developmental biology, peramorphosis is a phylogenetic change in which individuals of a species mature past adulthood and take on hitherto unseen traits. It is the reverse of pedomorphosis.

"Hypermorphosis" is a form of peramorphosis which represents a delay in the offset of development.

Peramorphosis in fiction

*The Pak Protectors in Larry Niven's Known Space universe.

References

* Gould, Stephen Jay (1985). "Ontogeny and Phylogeny." Cambridge: Belknap Press. ISBN 0-674-63941-3.


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