Silkie the "SHH" gene, called the ZPA Regulatory Sequence (ZRS). This causes ectopic "SHH" expression in the anterior of the developing limb bud, leading to increased tissue growth and digits. While the feet of the Silkie display polydactyly, the wings have the standard tridactyly (three digit) arrangement. The Japanese Silkie initially develops additional digits in the wing as an embryo, but these are lost prior to hatching. The genetic cause behind Silkie polydactyly differs from those that cause polydactyly in the Dorking chicken breed, which is due to ectopic "FGF4" expression in the AER, with ectopic "SHH" a secondary effect. The
Foundling-Bird and told the cook what they had seen, and she scolded them for not bringing back the chandelier. The cook set out herself. Fundevogel turned into a pond and Lenchen a duck on it. The cook knelt down to drink up the pool, but Lenchen caught her head and drew her into the pond to drown. The children went safely home again. Foundling-Bird Foundling-Bird is a German fairy tale collected by the Brothers Grimm, number 51. It is Aarne–Thompson type 313A, the girl helps the hero flee, and revolves about a transformation chase. Others of the type include "The Master