The phenomenon of an
organism's
primary sexual characteristics disappearing into the undifferentiated biomass of the organism itself. This can occur during abnormal
gestation, and there are some perfectly normal examples of
genital absorption in nature. Certain species of frogs, for example, are able to
change sex depending on their surroundings, the season and the gender balance of their local
population. When they do so, their genitalia are, in fact, slowly absorbed into their body mass, just as some
scar tissue is slowly absorbed.
This is what happened to the dinosaurs in Jurassic Park which were birthed using frog DNA as a 'filler' for missing codons.