In developmental biology, pedomorphosis (also spelled paedomorphosis) or juvenification's a phenotypic and/or genotypic change in which the adults of a species retain traits previously seen only in juveniles. Peramorphosis's change in the reverse direction. Pedomorphosis was first proposed by Walter Garstang in 1922. The underlying mechanisms for this include heterochrony. There're several kinds of pedomorphism which may appear independently or in combination: Neoteny, in which somatic (or phys… (More on Pedomorphosis)